:root{color-scheme:light;--bg:#f8f9f5;--surface:#fff;--sidebar:#eff3ee;--text:#202d29;--muted:#64706a;--border:#dce3db;--primary:#254d3d;--on-primary:#fff;--soft:#eaf2eb;--tag:#f0f2ef;--blue:#3260aa;--purple:#7757a1;--orange:#a3692d;--green:#397543;--private-bg:#fff4df;--private:#805618;--danger:#ac3030;--ring:#488369;--serif:"Songti SC","STSong","Noto Serif CJK SC",Georgia,serif;--sans:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:96px}body{margin:0;font:1rem/1.6 var(--sans);color:var(--text);background:var(--bg)}body[data-theme=dark]{color-scheme:dark;--bg:#17201c;--surface:#202c25;--sidebar:#1b2720;--text:#e4ece5;--muted:#aab9ad;--border:#3b4c40;--primary:#a4d4b5;--on-primary:#173b29;--soft:#2b4032;--tag:#2c3930;--blue:#94b9f3;--purple:#c3aff0;--orange:#e9bd86;--green:#a3d2a7;--private-bg:#443923;--private:#edd199;--danger:#ffa2a2;--ring:#a4d4b5}
a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:wait;opacity:.65}button{border:0}a,button{transition:background-color .18s,color .18s,border-color .18s,box-shadow .18s}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--ring);outline-offset:3px}h1,h2,h3,p{margin:0}h1,h2,h3{overflow-wrap:anywhere}svg{flex-shrink:0}.icon{vertical-align:middle}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;top:-70px;left:16px;z-index:100;background:var(--primary);color:var(--on-primary);padding:12px 24px;border-radius:8px}.skip-link:focus{top:12px}
.sidebar{position:fixed;inset:0 auto 0 0;width:236px;z-index:40;padding:28px 16px 16px;background:var(--sidebar);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow:auto}.brand{display:flex;align-items:center;gap:12px;padding:0 8px;margin:0 0 36px}.brand-mark{color:var(--primary)}.brand-mark .icon{width:38px;height:38px}.brand strong{display:block;font:700 1.8125rem/1.2 var(--serif);letter-spacing:1px;font-family:var(--sans)}.brand small{display:block;font-size:0.5rem;letter-spacing:1.4px;color:var(--muted);margin-top:5px;white-space:normal}.nav-item{min-height:48px;display:flex;align-items:center;gap:14px;border-radius:7px;padding:10px 14px;font-size:0.875rem;margin-bottom:4px}.nav-item .icon{color:var(--muted)}.nav-item:hover{background:var(--soft)}.nav-item.active{background:var(--primary);color:var(--on-primary);font-weight:600}.nav-item.active .icon{color:inherit}.nav-chevron{margin-left:auto;width:15px}.nav-divider{height:1px;background:var(--border);margin:20px 6px}.nav-label{font-size:0.8125rem;color:var(--muted);margin:0 14px 12px}.nav-count{margin-left:auto;color:var(--muted);font-size:0.8125rem;font-variant-numeric:tabular-nums}.category-active{background:var(--soft);font-weight:600}.sidebar-bottom{margin-top:auto;padding-top:44px}.visitor-card{border:1px solid var(--border);border-radius:10px;padding:14px;background:var(--bg)}.visitor-heading{display:flex;gap:12px;align-items:center;margin-bottom:16px}.avatar{width:36px;height:36px;background:var(--tag);border-radius:50%;display:grid;place-items:center;color:var(--muted)}.visitor-heading strong{font-size:0.875rem;font-weight:600}.visitor-heading p{font-size:0.75rem;color:var(--muted);margin-top:3px}.sidebar-foot{display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:0.6875rem;padding:8px 2px 0}.icon-button{width:44px;height:44px;display:inline-grid;place-items:center;background:transparent;color:var(--muted);border-radius:6px}.icon-button:hover{background:var(--soft);color:var(--primary)}
.workspace{margin-left:236px;min-height:100dvh;display:flex;flex-direction:column}.topbar{height:72px;padding:0 36px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:16px}.breadcrumb{display:flex;align-items:center;gap:14px;font-size:0.875rem;color:var(--muted)}.breadcrumb a:hover{color:var(--primary)}.slash{color:var(--muted);opacity:.65}.topbar-actions{display:flex;align-items:center;gap:24px}.access-status{display:flex;align-items:center;gap:8px;font-size:0.8125rem;color:var(--muted)}.access-status .icon{width:17px;height:17px}.button{min-height:44px;display:inline-flex;justify-content:center;align-items:center;gap:12px;border:1px solid transparent;border-radius:7px;padding:10px 18px;font-size:0.875rem;font-weight:500;line-height:1.4;white-space:nowrap}.button .icon{width:17px;height:17px}.primary{background:var(--primary);color:var(--on-primary)}.primary:hover{box-shadow:0 3px 10px #244b3a25;filter:brightness(1.1)}.secondary{border-color:var(--border);background:var(--surface);color:var(--text)}.secondary:hover{border-color:var(--primary);background:var(--soft)}.small{padding:8px 16px}.full-width{width:100%}.main{width:100%;max-width:1552px;margin:0 auto;padding:32px 36px 16px;flex:1;outline:none}.page-heading{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:24px}.page-heading h1{font:700 2.375rem/1.4 var(--serif);letter-spacing:-1px}.page-heading p{color:var(--muted);margin-top:6px;font-size:0.9375rem}.search-form{min-height:52px;display:flex;align-items:center;gap:12px;padding:4px 6px 4px 16px;border:1px solid var(--border);border-radius:9px;background:var(--surface);margin-bottom:24px}.search-form>.icon{color:var(--muted)}.search-form:focus-within{border-color:var(--ring);box-shadow:0 0 0 2px var(--soft)}.search-form input{flex:1;width:0;min-width:0;border:0;background:transparent;color:var(--text);padding:8px 0;outline:none}.search-form input::placeholder{color:var(--muted)}.keyboard-hint{display:flex;gap:4px;color:var(--muted);font-size:0.75rem}.keyboard-hint kbd{font-family:var(--sans);border:1px solid var(--border);border-radius:4px;padding:0 4px}.search-submit{padding:10px 14px;min-height:44px;background:transparent;color:var(--primary);font-size:0.875rem;border-radius:6px}.search-submit:hover{background:var(--soft)}
.featured{display:flex;gap:24px;align-items:center;justify-content:space-between;border:1px solid var(--border);border-radius:10px;padding:26px 28px;background:var(--bg);margin-bottom:28px;overflow:hidden}.featured-copy{flex:1;max-width:690px}.featured-label{display:flex;gap:8px;align-items:center;font-size:0.8125rem;color:var(--primary);font-weight:600;margin-bottom:7px}.featured-label .icon{width:16px;height:16px}.featured h2{font:700 clamp(1.25rem,1.75vw,1.6875rem)/1.5 var(--serif);margin-bottom:6px}.featured p{font-size:0.875rem;line-height:1.85;color:var(--muted);margin-bottom:16px}.knowledge-art{width:320px;height:160px;flex-shrink:0;position:relative}.connections{position:absolute;inset:0;width:100%;height:100%;fill:none;stroke:var(--primary);stroke-width:1;stroke-dasharray:3 5;opacity:.5}.note{position:absolute;width:78px;height:48px;padding:10px 12px;border-radius:5px;border:1px solid var(--border);background:var(--soft);box-shadow:0 3px 7px #243d2810}.note .icon{width:16px;height:16px;float:left;margin-right:8px;color:var(--primary)}.note i{display:block;height:2px;width:32px;background:var(--primary);opacity:.35;margin-bottom:7px}.note i:last-child{width:23px}.note-one{left:5px;top:10px}.note-two{right:14px;top:0}.note-center{left:132px;top:60px;width:90px;height:56px;background:var(--primary);border-color:var(--primary);padding:16px}.note-center i{background:var(--on-primary);width:45px;opacity:.7}.note-three{bottom:2px;left:0}.note-four{bottom:0;right:0}.art-dot{position:absolute;width:7px;height:7px;background:var(--primary);border-radius:50%;opacity:.4}.dot-one{top:18px;left:155px}.dot-two{bottom:15px;right:108px}
.section-heading{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:8px}.section-heading h2{font:700 1.5625rem/1.5 var(--serif)}.result-count{font:400 0.8125rem var(--sans);color:var(--muted);margin-left:12px}.view-switch{display:flex;background:var(--surface);border:1px solid var(--border);border-radius:7px;padding:3px}.view-switch a{min-height:38px;display:flex;gap:6px;align-items:center;padding:6px 10px;color:var(--muted);font-size:0.75rem;border-radius:5px}.view-switch a .icon{width:16px;height:16px}.view-switch .selected{background:var(--primary);color:var(--on-primary)}.filter-tabs{display:flex;flex-wrap:wrap;gap:4px 16px;border-bottom:1px solid var(--border);margin-bottom:18px}.filter-tabs a{padding:12px 10px;min-height:46px;font-size:0.875rem;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-1px}.filter-tabs a:first-child{padding-left:10px}.filter-tabs a:hover{color:var(--primary)}.filter-tabs .selected{color:var(--primary);border-bottom-color:var(--primary);font-weight:600}.article-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.article-card{display:flex;flex-direction:column;min-width:0;min-height:225px;padding:18px;background:var(--surface);border:1px solid var(--border);border-radius:10px;position:relative}.article-card:hover{border-color:var(--ring);box-shadow:0 4px 16px #254d3d0a}.card-top{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:14px}.category-label{display:flex;align-items:center;gap:8px;font-size:0.75rem;color:var(--muted)}.category-icon{display:inline-flex}.category-icon .icon{width:18px;height:18px}.blue{color:var(--blue)}.purple{color:var(--purple)}.orange{color:var(--orange)}.green{color:var(--green)}.badge{display:inline-flex;align-items:center;gap:4px;white-space:nowrap;padding:3px 7px;border-radius:4px;font-size:0.6875rem;line-height:1.5;font-weight:500}.badge .icon{width:12px;height:12px}.badge.public{background:var(--soft);color:var(--primary)}.badge.restricted{background:var(--private-bg);color:var(--private)}.article-card h3{font:700 1.1875rem/1.5 var(--serif);margin-bottom:7px}.card-description{font-size:0.875rem;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:12px}.tags{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}.tags span,.tags a{font-size:0.6875rem;background:var(--tag);color:var(--muted);padding:2px 7px;border-radius:4px}.tags a:hover{color:var(--primary)}.card-footer{display:flex;justify-content:space-between;align-items:center;gap:8px;border-top:1px solid var(--border);padding-top:12px;margin-top:auto;font-size:0.6875rem;color:var(--muted);font-variant-numeric:tabular-nums}.card-footer>span{display:flex;align-items:center;gap:6px}.card-footer .icon{width:13px;height:13px}.collection-note{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:0.75rem;margin-top:18px}.site-footer{max-width:1552px;width:100%;margin:24px auto 0;padding:20px 36px;border-top:1px solid var(--border);display:flex;gap:24px;font-size:0.75rem;color:var(--muted)}.site-footer>a:last-child{margin-left:auto}.site-footer a:hover{color:var(--primary)}.list-view{grid-template-columns:1fr}.list-view .article-card{display:grid;grid-template-columns:1fr auto;gap:0 20px;min-height:0}.list-view .card-top,.list-view h3,.list-view .card-description{grid-column:1}.list-view .card-description{max-width:760px}.list-view .tags{grid-column:1;margin-bottom:0}.list-view .card-footer{grid-column:2;grid-row:1 / span 4;flex-direction:column;align-items:flex-end;justify-content:center;border:0;margin:0;gap:12px;padding:0}.empty-state{text-align:center;padding:64px 24px;border:1px dashed var(--border);border-radius:10px}.empty-icon{display:inline-grid;place-items:center;width:56px;height:56px;border-radius:50%;background:var(--soft);color:var(--primary);margin-bottom:16px}.empty-state h3{font-size:1.25rem}.empty-state p{color:var(--muted);margin:10px 0 24px}
.back-link{display:inline-flex;align-items:center;gap:8px;min-height:44px;color:var(--muted);font-size:0.875rem;margin-bottom:24px}.back-link:hover{color:var(--primary)}.back-link .icon{width:17px;height:17px}.reading-layout{display:grid;grid-template-columns:minmax(0,760px) 190px;gap:56px;justify-content:center}.reading-main{min-width:0}.article-heading{border-bottom:1px solid var(--border);padding-bottom:26px;margin-bottom:30px}.article-kicker{display:flex;align-items:center;gap:12px;color:var(--primary);font-size:0.875rem;margin-bottom:18px}.article-heading h1{font:700 clamp(1.75rem,2.7vw,2.5rem)/1.5 var(--serif);margin-bottom:16px}.article-heading>p{font-size:1rem;color:var(--muted);line-height:1.9;margin-bottom:20px}.article-meta{display:flex;gap:16px;flex-wrap:wrap;font-size:0.75rem;color:var(--muted);margin-bottom:14px}.article-heading .tags{margin:0}.prose{font-size:1rem;line-height:1.95;overflow-wrap:anywhere}.prose p{margin-bottom:20px}.prose h2{font-size:1.5rem;line-height:1.5;margin:36px 0 18px;font-family:var(--serif)}.prose h3{font-size:1.1875rem;margin:26px 0 14px}.prose h1{font-size:1.875rem;margin:30px 0 16px}.prose a{color:var(--primary);text-decoration:underline;text-underline-offset:4px}.prose ul,.prose ol{padding-left:24px;margin:16px 0 24px}.prose li{margin-bottom:7px}.prose blockquote{margin:24px 0;border-left:3px solid var(--primary);padding:16px 22px;background:var(--soft);color:var(--muted)}.prose blockquote p:last-child{margin:0}.prose pre{max-width:100%;overflow-x:auto;background:var(--tag);border:1px solid var(--border);border-radius:8px;padding:20px;font:0.8125rem/1.8 ui-monospace,SFMono-Regular,Consolas,monospace;margin:24px 0}.prose :not(pre)>code{font-size:.9em;background:var(--tag);padding:2px 6px;border-radius:4px}.prose table{width:100%;border-collapse:collapse;margin:24px 0;display:block;overflow-x:auto;font-size:0.875rem}.prose th,.prose td{text-align:left;border:1px solid var(--border);padding:10px 14px}.prose th{background:var(--soft)}.prose img{max-width:100%;height:auto}.prose hr{border:0;border-top:1px solid var(--border);margin:36px 0}.prose details{border:1px solid var(--border);border-radius:7px;padding:14px 18px;margin:20px 0}.prose summary{cursor:pointer;min-height:44px}.toc{align-self:start;position:sticky;top:32px;border-left:1px solid var(--border);padding-left:20px;margin-top:8px;font-size:0.8125rem}.toc p{font-weight:600;margin-bottom:14px}.toc nav{display:flex;flex-direction:column}.toc a{padding:9px 0;color:var(--muted);min-height:40px}.toc a:hover{color:var(--primary)}.toc-top{display:inline-block;margin-top:20px;font-size:0.75rem}.article-end{margin:48px 0 8px;border-top:1px solid var(--border);padding-top:28px;display:flex;justify-content:space-between;align-items:center;gap:16px;color:var(--muted);font-size:0.8125rem}.locked-state{padding:48px 20px;text-align:center;border:1px dashed var(--border);border-radius:12px;background:var(--surface);margin-bottom:32px}.lock-emblem,.login-icon{display:inline-grid;place-items:center;background:var(--soft);color:var(--primary);width:54px;height:54px;border-radius:14px;margin-bottom:20px}.lock-emblem .icon{width:26px;height:26px}.locked-state h2{font:700 1.5rem/1.6 var(--serif);margin-bottom:12px}.locked-state p{color:var(--muted);margin-bottom:28px}.text-link{display:block;color:var(--muted);font-size:0.875rem;padding:18px;min-height:44px}.text-link:hover{color:var(--primary)}
.login-layout{display:grid;grid-template-columns:1fr 1fr;max-width:900px;margin:64px auto;gap:72px;align-items:center}.login-intro{padding:20px 0 20px 20px}.intro-book{display:block;color:var(--primary);margin-bottom:28px}.intro-book .icon{width:52px;height:52px}.login-intro h1{font:700 2.875rem/1.5 var(--serif);margin-bottom:20px}.login-intro p{color:var(--muted);font-size:1rem;line-height:1.9}.login-line{width:44px;height:2px;background:var(--primary);margin:32px 0 20px}.login-intro>span:last-child{font-size:0.75rem;letter-spacing:2px;color:var(--muted)}.login-panel{border:1px solid var(--border);background:var(--surface);border-radius:14px;padding:32px;width:100%}.login-icon{width:40px;height:40px;border-radius:9px;margin-bottom:16px}.login-panel h2{font:700 1.6875rem/1.5 var(--serif);margin-bottom:7px}.login-panel>p{font-size:0.875rem;color:var(--muted);margin-bottom:26px}.form-field{margin-bottom:20px}.form-field label{display:block;font-size:0.875rem;font-weight:500;margin-bottom:8px}.form-field input{width:100%;min-height:48px;border:1px solid var(--border);background:var(--bg);color:var(--text);padding:10px 14px;border-radius:7px;font-size:1rem}.form-field input::placeholder{color:var(--muted);font-size:0.875rem}.password-field{position:relative}.password-field input{padding-right:48px}.password-field .icon-button{position:absolute;right:3px;top:2px}.form-error{font-size:0.875rem;color:var(--danger);border:1px solid var(--danger);padding:10px 12px;border-radius:6px;margin-bottom:18px}.form-help{font-size:0.75rem;color:var(--muted);line-height:1.7;text-align:center;margin-top:16px}.login-back{width:100%;justify-content:center;margin:18px 0 0;border-top:1px solid var(--border);padding-top:20px;font-size:0.8125rem}.about-page{max-width:720px;margin:16px auto 48px}.about-mark{display:block;color:var(--primary);margin-bottom:22px}.about-mark .icon{width:44px;height:44px}.about-page h1{font:700 2.625rem/1.5 var(--serif);margin-bottom:12px}.about-lead{font-size:1.25rem;color:var(--muted);margin-bottom:32px}.about-example{font-size:0.875rem;color:var(--muted)}.message-page{text-align:center;padding:100px 20px}.error-code{font:400 4.5rem/1.5 var(--serif);color:var(--primary)}.message-page h1{font:700 1.875rem/1.6 var(--serif);margin:12px 0}.message-page p{color:var(--muted);margin-bottom:28px}.mobile-menu,.mobile-close,.mobile-scrim{display:none}
@media(min-width:1201px){.sidebar{width:294px;padding-left:20px;padding-right:20px}.workspace{margin-left:294px}.brand{padding-left:8px}.brand small{white-space:nowrap}.nav-item{font-size:1rem}.topbar{height:56px}.main{padding-top:24px}.page-heading h1{font-size:2.75rem}.page-heading p{font-size:1rem}.featured{padding:22px 28px}.featured p{font-size:1rem}.featured h2{font-size:1.625rem}.category-label{font-size:.875rem}.card-description{font-size:1rem}.article-card h3{font-size:1.25rem}.card-top{flex-wrap:wrap}.card-footer{font-size:.75rem}}
@media(min-width:1600px){.main{padding:40px 48px 24px}.topbar,.site-footer{padding-left:48px;padding-right:48px}.article-card{padding:22px;min-height:250px}}
@media(max-width:1200px){.main{padding:28px 28px 16px}.topbar,.site-footer{padding-left:28px;padding-right:28px}.article-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.knowledge-art{width:235px;transform:scale(.9);transform-origin:right center}.featured{padding:24px}.note-center{left:83px}.featured h2{font-size:1.375rem}.reading-layout{grid-template-columns:minmax(0,1fr);gap:0}.toc{display:none}.login-layout{gap:32px;margin:40px auto}.login-panel{padding:26px}.login-intro h1{font-size:2.25rem}}
@media(max-width:850px){.sidebar{width:216px;padding-left:12px;padding-right:12px}.workspace{margin-left:216px}.brand{gap:8px;padding-left:2px}.brand small{font-size:0.4375rem}.nav-item{padding:10px 12px;gap:10px}.main{padding:24px 24px 16px}.topbar,.site-footer{padding-left:24px;padding-right:24px}.knowledge-art{display:none}.page-heading h1{font-size:2rem}.page-heading>.button{font-size:0.75rem;padding:10px 12px}.view-switch a span{display:none}.view-switch a{min-width:42px;justify-content:center}.card-top{flex-wrap:wrap}.category-label{font-size:0.75rem}.article-card{padding:16px}.login-layout{grid-template-columns:1fr;max-width:400px;margin:16px auto}.login-intro{display:none}.site-footer>span{display:none}.filter-tabs{gap:0 6px}.filter-tabs a{font-size:0.8125rem;padding:12px 7px}.collection-note>span:last-child{display:none}}
@media(max-width:650px){.sidebar{transform:translateX(-100%);width:260px;transition:transform .2s;background:var(--sidebar);padding-top:28px}.workspace{margin-left:0}.menu-open .sidebar{transform:translateX(0)}.menu-open{overflow:hidden}.menu-open .workspace{pointer-events:none}.mobile-menu,.mobile-close{display:inline-grid}.mobile-close{position:absolute;right:8px;top:15px}.mobile-menu{margin-left:-8px}.mobile-scrim{position:fixed;inset:0;background:#10221975;z-index:30}.menu-open .mobile-scrim{display:block}.topbar{height:64px;padding:0 20px;gap:8px}.breadcrumb{gap:8px;font-size:0.75rem}.topbar-actions{gap:10px}.access-status{font-size:0.75rem;gap:5px}.access-status .icon{width:15px;height:15px}.topbar-actions .button{font-size:0.75rem;padding:8px 12px;min-height:40px;gap:5px}.topbar-actions .button .icon{display:none}.main{padding:24px 20px 12px}.page-heading{gap:12px;margin-bottom:20px;align-items:flex-start}.page-heading h1{font-size:1.875rem}.page-heading p{font-size:0.875rem;max-width:240px;line-height:1.7}.page-heading>.button{font-size:0.75rem;min-height:40px;padding:8px 10px;margin-top:4px}.page-heading>.button .icon{display:none}.search-form{margin-bottom:20px;padding-left:12px;gap:8px}.search-form input{font-size:1rem}.keyboard-hint{display:none}.search-submit{font-size:0.75rem;padding:10px}.featured{padding:22px 20px;margin-bottom:24px}.featured h2{font-size:1.3125rem}.featured p{font-size:0.875rem}.featured-label{font-size:0.75rem}.section-heading h2{font-size:1.4375rem}.filter-tabs{gap:0}.filter-tabs a{font-size:0.75rem;padding:12px 8px}.filter-tabs a:first-child{padding-left:0;padding-right:12px}.article-grid{grid-template-columns:1fr;gap:14px}.article-card{padding:20px;min-height:220px}.card-top{flex-wrap:nowrap}.category-label{font-size:0.8125rem}.badge{font-size:0.75rem}.article-card h3{font-size:1.3125rem}.card-description{font-size:0.9375rem}.tags span,.tags a{font-size:0.75rem}.card-footer{font-size:0.75rem}.list-view .article-card{display:flex}.list-view .card-footer{flex-direction:row;justify-content:space-between;align-items:center;border-top:1px solid var(--border);padding-top:12px;margin-top:14px}.site-footer{padding:20px;font-size:0.75rem;margin-top:16px}.collection-note{font-size:0.75rem}.reading-layout{display:block}.article-heading h1{font-size:1.875rem}.prose{font-size:1rem}.prose h2{font-size:1.4375rem}.back-link{margin-bottom:20px}.article-end{flex-direction:column;align-items:flex-start}.locked-state{padding:32px 16px}.locked-state h2{font-size:1.375rem}.login-layout{margin:8px auto 24px}.login-panel{padding:26px 22px}.about-page{margin:8px auto 24px}.about-page h1{font-size:2.125rem}.about-lead{font-size:1.125rem}.message-page{padding:64px 0}.message-page h1{font-size:1.625rem}}
.skip-link{top:0;transform:translateY(calc(-100% - 16px))}.skip-link:focus{top:12px;transform:none}.topbar{height:auto;min-height:72px}.view-switch a{min-height:44px}.toc a{min-height:44px}.article-heading .tags a{min-height:44px;display:inline-flex;align-items:center;font-size:.875rem}.note .icon{float:none;position:absolute;left:10px;top:11px}.note i{margin-left:20px;width:25px}.note-center i{margin-left:0;width:45px}
@media(min-width:1201px){.topbar{min-height:56px}}
@media(max-width:650px){.topbar{min-height:64px;flex-wrap:wrap;padding-top:8px;padding-bottom:8px}.breadcrumb{min-width:0;flex-wrap:wrap}.topbar-actions{margin-left:auto}.topbar-actions .button,.page-heading>.button{min-height:44px}.card-description{font-size:1rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}