:root{--primary:#B7332A;--ink:#1B2A38;--muted:#3D5062;--paper:#F6F2E9;--surface:#EFE9DC;--border:#D4CFC5;--nav:#101B25;--gold:#A8823F;--primary-hover:#94251D;--body-font:"Microsoft YaHei","PingFang SC",sans-serif;--title-font:"Source Han Serif SC","Songti SC",SimSun,serif;color-scheme:light;scrollbar-color:var(--muted) var(--surface);scrollbar-width:auto}
*{box-sizing:border-box;scrollbar-color:var(--muted) var(--surface)}*::-webkit-scrollbar{width:12px;height:12px}*::-webkit-scrollbar-track{background:var(--surface)}*::-webkit-scrollbar-thumb{background:var(--muted);border:3px solid var(--surface);border-radius:8px}*::-webkit-scrollbar-thumb:hover{background:var(--primary)}*::-webkit-scrollbar-thumb:active{background:var(--ink)}
html{scrollbar-gutter:stable}body{margin:0;color:var(--ink);background:var(--paper);font:17px/1.8 var(--body-font)}a{color:var(--primary);text-underline-offset:4px;overflow-wrap:anywhere}a:hover{text-decoration-thickness:2px}a,button,select{cursor:pointer}:focus-visible{outline:3px solid var(--primary);outline-offset:4px}button,input,select{font:inherit}button:disabled{cursor:wait;opacity:.65}button{border:1px solid var(--border);background:var(--surface);color:var(--ink);padding:9px 18px;border-radius:4px}button:hover{border-color:var(--primary)}button:active{background:var(--border)}[hidden]{display:none!important}.shell{max-width:1208px;margin:0 auto;padding:0 24px}.skip-link{position:absolute;top:-100px;background:var(--paper);padding:12px;z-index:10}.skip-link:focus{top:0}
.masthead{border-top:6px solid var(--primary)}.masthead-inner{min-height:110px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:18px;text-decoration:none;font:700 27px/1.4 var(--title-font)}.brand-mark{font:700 17px/1.2 var(--title-font);background:var(--primary);color:white;padding:14px 10px;border-radius:2px}.search-entry{font-size:15px;white-space:nowrap}.topnav{background:var(--primary);color:white}.nav-inner{display:flex;flex-wrap:wrap;gap:0}.topnav a{color:white;text-decoration:none;padding:12px 19px;min-height:48px}.topnav a:hover{background:rgba(255,255,255,.15)}.topnav a:focus-visible{outline-color:white;outline-offset:-5px}
.page-heading{padding:36px 0 26px}.page-heading h1{font:700 34px/1.45 var(--title-font);margin:0 0 6px}.page-heading p{color:var(--muted);margin:0;font-size:15px}.content-grid{display:grid;grid-template-columns:220px minmax(0,1fr);gap:54px}.directory{background:var(--surface);padding:20px 22px;align-self:start}.directory h2{font-size:18px;margin:0 0 12px}.directory a{display:block;padding:6px 0;text-decoration:none;font-size:15px}.directory .directory-parent{font-weight:700;padding-top:12px}.directory .directory-child{padding-left:14px}.section-title{font:700 22px/1.5 var(--title-font);margin:0;border-bottom:2px solid var(--primary);padding-bottom:15px}.article-list{list-style:none;margin:0;padding:0}.article-list li{display:flex;justify-content:space-between;align-items:baseline;gap:24px;padding:19px 0;border-bottom:1px solid var(--border)}.article-list a{text-decoration:none}.article-list a:hover{text-decoration:underline}.article-list time{font-size:14px;white-space:nowrap;color:var(--muted);font-variant-numeric:tabular-nums}.list-category{display:block;color:var(--muted);font-size:13px;margin-top:3px}.breadcrumbs{display:flex;flex-wrap:wrap;gap:10px;font-size:14px;color:var(--muted);padding-top:25px}.breadcrumbs a{text-decoration:none}.childnav{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:12px}.childnav a{background:var(--surface);padding:6px 12px;text-decoration:none}.pagination{display:flex;gap:8px;flex-wrap:wrap;padding:30px 0}.pagination a{border:1px solid var(--border);padding:7px 14px;text-decoration:none;min-width:44px;text-align:center}.pagination [aria-current]{color:white;background:var(--primary)}.empty{background:var(--surface);padding:24px}
.reading{max-width:760px;margin:0 auto}.article-heading{padding:30px 0 28px;border-bottom:1px solid var(--border);margin-bottom:32px}.article-heading h1{font:700 34px/1.45 var(--title-font);margin:0 0 16px;overflow-wrap:anywhere}.metadata{display:flex;flex-wrap:wrap;gap:20px;color:var(--muted);font-size:14px;margin:0}.prose{line-height:1.95;overflow-wrap:anywhere;display:flow-root}.prose p{margin:0 0 1.25em}.prose img,.prose video{max-width:100%;height:auto}.prose audio{max-width:100%}.prose video{display:block;background:var(--surface)}.prose table{display:block;overflow-x:auto;max-width:100%;border-collapse:collapse;margin:20px 0}.prose td,.prose th{border:1px solid var(--border);padding:9px 12px;min-width:70px}.prose th{background:var(--surface)}.prose pre{overflow-x:auto;padding:16px;background:var(--surface)}.attachment{margin:32px 0;padding:20px;background:var(--surface)}.attachment h2{font-size:18px;margin:0 0 8px}.attachment p{margin:8px 0}.attachment a{margin-right:20px}.pdf-view{width:100%;height:650px;border:1px solid var(--border);background:white}.article-back{border-top:1px solid var(--border);padding-top:24px;margin-top:36px}.footer{margin-top:64px;padding-top:25px;padding-bottom:32px;border-top:1px solid var(--border);color:var(--muted);font-size:13px;display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between}
.search-form{display:flex;align-items:end;flex-wrap:wrap;gap:16px;padding:24px;background:var(--surface)}.search-form label{display:block;font-size:14px;margin-bottom:6px}.search-field{flex:1;min-width:200px}.query-control{display:flex;gap:6px}.query-control input{width:100%;min-width:0}.search-form input,.search-form select{border:1px solid var(--border);background:white;border-radius:4px;min-height:48px;padding:8px 12px;color:var(--ink)}.category-field select{max-width:100%}.primary-button{background:var(--primary);color:white;min-width:90px;min-height:48px}.primary-button:hover{background:var(--ink)}.search-status{min-height:32px;margin:24px 0 8px;color:var(--muted)}.not-found{padding:70px 0;text-align:center}.not-found a{display:inline-block;margin:10px}.error-number{font-size:70px;font-weight:700;line-height:1;color:var(--primary);margin:0}
@media(max-width:800px){.content-grid{grid-template-columns:1fr;gap:30px}.directory{display:flex;flex-wrap:wrap;gap:6px 18px}.directory h2{width:100%}.directory a,.directory .directory-parent,.directory .directory-child{padding:3px 0}.article-heading h1,.page-heading h1{font-size:29px}.topnav a{padding:10px 14px}.pdf-view{height:480px}}
@media(max-width:480px){.shell{padding-left:16px;padding-right:16px}.masthead-inner{min-height:88px;gap:12px}.brand{font-size:22px;gap:12px}.brand-mark{padding:11px 8px;font-size:15px}.search-entry{font-size:14px}.page-heading{padding-top:26px}.article-list li{gap:6px;align-items:start;flex-direction:column;padding:16px 0}.article-list time{font-size:13px}.article-heading h1{font-size:27px}.prose{font-size:17px}.search-form{padding:16px}.search-field,.category-field{width:100%}.category-field select{width:100%}.footer{margin-top:40px;gap:8px;flex-direction:column}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}@media(forced-colors:active){*{scrollbar-color:auto}.brand-mark,.pagination [aria-current]{border:1px solid CanvasText}.topnav{border-block:1px solid CanvasText}}

.missing-resource{color:var(--muted);background:var(--surface);border-inline-start:3px solid var(--border);padding:3px 8px;overflow-wrap:anywhere}

/* Paper, blue-black ink and seal red, shared by every mirror page. */
body{background:var(--surface)}
.masthead{background:var(--paper)}
.masthead-inner{min-height:120px}
.brand{color:var(--ink);letter-spacing:.035em}
.brand-mark{padding:17px 11px;border-radius:4px;outline:1px solid var(--border);outline-offset:4px}
.search-entry{padding:8px 17px;border:1px solid var(--border);border-radius:4px;text-decoration:none}
.search-entry:hover{background:var(--surface);border-color:var(--primary)}
.search-entry:active{background:var(--border)}
.topnav{background:var(--nav);box-shadow:0 2px 0 var(--gold)}
.topnav a{position:relative;padding:14px 19px}
.topnav a:hover{background:var(--ink)}
.topnav a:active{background:var(--ink);text-decoration:underline}
#main{margin-top:32px;padding-top:30px;padding-bottom:36px;background:var(--paper);border:1px solid var(--border);border-radius:6px;min-height:50vh}
.page-heading{padding:0 0 26px;margin-bottom:28px;border-bottom:1px solid var(--border)}
.page-heading h1{color:var(--ink);font-size:32px;letter-spacing:.04em}
.page-heading p{margin-top:8px}
.content-grid{gap:38px}
.directory{border:1px solid var(--border);border-top:3px solid var(--primary);border-radius:4px;padding:18px 18px 22px}
.directory h2{color:var(--ink);padding-bottom:12px;border-bottom:1px solid var(--border)}
.directory a{border-radius:3px;padding:6px 8px;margin-inline:-8px}
.directory a:hover{background:var(--paper);text-decoration:underline}
.directory a:active{background:var(--border)}
.directory .directory-parent{padding-top:14px}
.directory .directory-child{padding-left:22px}
.section-title{position:relative;border-bottom:1px solid var(--border);padding:0 0 14px 14px}
.section-title::before{content:"";position:absolute;left:0;top:6px;width:4px;height:22px;background:var(--primary);border-radius:2px}
.article-list li{padding:20px 12px;gap:20px}
.article-list li:hover{background:var(--surface)}
.article-list a{line-height:1.75}
.article-list a:active{color:var(--ink)}
.list-category{margin-top:7px;font-size:13px}
.childnav a,.pagination a{border:1px solid var(--border);border-radius:4px}
.childnav a:hover,.pagination a:hover{border-color:var(--primary);text-decoration:underline}
.childnav a:active,.pagination a:active{background:var(--border);color:var(--ink)}
.breadcrumbs{padding-top:0;gap:8px;font-size:13px}
.breadcrumbs a:hover{text-decoration:underline}
.article-heading{padding-top:28px;margin-bottom:34px}
.article-heading h1{line-height:1.55;letter-spacing:.015em}
.prose h2,.prose h3{color:var(--ink);line-height:1.6;margin:1.6em 0 .7em}
.prose blockquote{margin:24px 0;padding:12px 22px;border-inline-start:3px solid var(--primary);background:var(--surface)}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{display:block;margin:20px auto;border-radius:3px}
.attachment{border:1px solid var(--border);border-radius:4px}
.search-form{border:1px solid var(--border);border-radius:4px}
.footer{margin-top:32px;padding-top:20px;padding-bottom:28px;border-top:0}
@media(max-width:800px){#main{margin-top:24px}.content-grid{gap:28px}.directory{padding:16px}.directory h2{margin-bottom:4px}.directory a,.directory .directory-parent,.directory .directory-child{padding:5px 8px;margin:0}.page-heading{margin-bottom:24px}.topnav a{padding:11px 14px}}
@media(max-width:480px){.masthead-inner{min-height:96px}.brand{font-size:20px;letter-spacing:0;gap:12px}.brand-mark{padding:12px 8px;font-size:14px;outline-offset:3px}.search-entry{padding:6px 10px;font-size:13px}#main{margin-top:16px;padding-top:24px;padding-bottom:24px;border-inline:0;border-radius:0}.page-heading h1{font-size:28px}.page-heading{padding-bottom:20px}.article-list li{padding:17px 6px;gap:7px}.article-heading h1{font-size:26px}.article-heading{padding-top:22px}.footer{margin-top:18px}.topnav a{font-size:15px;padding:10px 12px}}
@media print{body{background:white}.masthead,.topnav,.directory,.search-entry,.search-form,.article-back,.skip-link{display:none}#main{margin:0;padding:0;border:0}.reading{max-width:none}.footer{margin-top:24px;border-top:1px solid var(--border)}.prose a{color:inherit}}

::selection{background:var(--primary);color:var(--paper)}
.masthead{border-top-color:var(--nav)}
.brand-mark{outline-color:var(--primary);box-shadow:inset 0 0 0 2px var(--paper);border:2px solid var(--primary)}
.brand:hover{color:var(--primary)}
.search-entry:hover{color:var(--primary-hover)}
.topnav a{color:var(--paper)}
.topnav a:hover{background:var(--ink);box-shadow:inset 0 -3px var(--gold)}
.topnav a:active{background:var(--primary-hover)}
.directory{border-top-color:var(--gold)}
.directory .directory-parent{color:var(--ink)}
.article-list a{color:var(--ink)}
.article-list a:hover{color:var(--primary)}
.primary-button{color:var(--paper)}
.primary-button:hover{background:var(--primary-hover)}
.brand-logo{display:block;width:56px;height:56px;flex:0 0 56px;object-fit:contain;border-radius:4px}
@media(max-width:480px){.brand-logo{width:44px;height:44px;flex-basis:44px}}
.pagination{align-items:center;gap:8px}
.pagination a{white-space:nowrap}
.pagination-gap{display:inline-flex;align-items:center;justify-content:center;min-width:24px;min-height:44px;color:var(--muted)}
@media(max-width:480px){.pagination{gap:6px}.pagination a{padding:7px 10px}.pagination-gap{min-width:16px}}