:root{--bg:#f6f7f5;--head:rgba(255,255,255,.88);--side:#fbfcfa;--surface:#fff;--surface2:#f5f7f4;--surface3:#eef2ed;--line:#e2e7e0;--line2:#cbd4c9;--text:#535b53;--strong:#1f271f;--muted:#7c867d;--green:#63c248;--green2:#459b31;--greenSoft:#eef9eb;--yellow:#fff9df;--yellowLine:#e8d27a;--reply:#f0f9ed;--replyHead:#e8f6e4;--code:#161a17;--codeText:#edf4ed;--mark:#ffe680;--danger:#d94a4a;--shadow:0 14px 38px rgba(30,45,30,.08);--shadow2:0 5px 18px rgba(30,45,30,.06);--radius:14px;--sidebar:310px}
:root[data-theme="dark"]{--bg:#111612;--head:rgba(20,27,21,.9);--side:#141a15;--surface:#1a211b;--surface2:#202820;--surface3:#263027;--line:#2d382f;--line2:#425044;--text:#c9d1c9;--strong:#f4f7f3;--muted:#909b91;--green:#69cf50;--green2:#84df6d;--greenSoft:#203722;--yellow:#312d1b;--yellowLine:#6f6226;--reply:#1d3220;--replyHead:#213c24;--code:#0d110e;--codeText:#f0f5ef;--mark:#6b5700;--shadow:0 18px 44px rgba(0,0,0,.25);--shadow2:0 7px 22px rgba(0,0,0,.18)}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}body{overflow-x:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit;color:inherit}.svg-icon{display:block;flex:0 0 auto}.app-head{height:68px;position:sticky;top:0;z-index:60;display:grid;grid-template-columns:var(--sidebar) minmax(280px,760px) 1fr;align-items:center;gap:20px;padding:10px 20px;background:var(--head);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.brand-wrap{display:flex;align-items:center;min-width:0}.brand{display:flex;align-items:center;gap:11px;min-width:0}.mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(145deg,#72d758,#59b941);color:#173415;display:grid;place-items:center;font-weight:950;box-shadow:inset 0 0 0 1px rgba(255,255,255,.2)}.brand-copy{display:grid;line-height:1.05}.brand-copy 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strong{color:var(--strong)}.related-card span{color:var(--muted);font-size:12px}.tabs{display:grid;gap:10px}.tabs-title{margin:0;font-size:17px}.tabbar{display:flex;gap:4px;overflow:auto;border-bottom:1px solid var(--line)}.tabbar button{flex:0 0 auto;min-height:36px;padding:0 11px;border:0;border-bottom:2px solid transparent;background:transparent;color:var(--muted);font-weight:750;cursor:pointer}.tabbar button:hover{background:var(--surface2);color:var(--strong)}.tabbar button.active{color:var(--green2);border-bottom-color:var(--green)}.tabpanel{display:grid;gap:14px;padding-top:4px}.section,.preview-collapsible{border:1px solid var(--line);background:var(--surface);overflow:hidden}.section>summary,.preview-collapsible>summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 15px;color:var(--strong);font-weight:800;cursor:pointer}.section>summary::-webkit-details-marker,.preview-collapsible>summary::-webkit-details-marker{display:none}.section-body,.collapse-content{display:grid;gap:14px;padding:0 15px 15px}.collapse-chevron{color:var(--muted);transition:.15s}.section[open]>summary .collapse-chevron,.preview-collapsible[open]>summary .collapse-chevron{transform:rotate(180deg)}.toc{padding:2px 0}.toc h2{margin:0 0 10px;color:var(--strong);font-size:19px}.toc ul{display:grid;gap:3px;margin:0;padding:0;list-style:none}.toc button{padding:5px 0;border:0;background:transparent;color:#1871df;text-align:left;cursor:pointer}.spacer{height:20px}.divider hr{border:0;border-top:1px solid var(--line)}.content-position{max-width:100%}.jump-highlight{animation:jump 1.2s ease}@keyframes jump{0%,100%{box-shadow:none}35%{box-shadow:0 0 0 4px color-mix(in srgb,var(--green) 22%,transparent)}}.empty-page{max-width:760px;margin:80px auto;padding:28px;border:1px dashed var(--line2);border-radius:14px;text-align:center;color:var(--muted)}
@media(max-width:1100px){.article-shell{grid-template-columns:1fr}.article-aside{display:none}.app-head{grid-template-columns:250px minmax(240px,1fr) auto}.app-body{--sidebar:280px}}
@media(max-width:820px){.app-head{grid-template-columns:auto minmax(0,1fr) auto;padding:8px 12px}.brand-copy{display:none}.sidebar-open{display:inline-flex}.app-body{grid-template-columns:1fr}.sidebar{position:fixed;top:68px;left:0;z-index:55;width:min(88vw,320px);transform:translateX(-102%);box-shadow:var(--shadow);transition:.18s}.sidebar.mobile-open{transform:none}.main{padding:26px 18px 56px}.global-search-wrap kbd{display:none}.global-search{padding-right:14px}.theme-label{display:none}.icon-button.with-label{width:40px;padding:0}.article-grid,.search-results{grid-template-columns:1fr}.hero{grid-template-columns:1fr}.hero-stat{display:none}}

/* ServHost Learning 0.3.1 — layout and reader parity fixes */
:root{--sidebar-open-width:296px;--article-max:1080px;--reading-max:900px}
.app-head{grid-template-columns:260px minmax(320px,680px) minmax(140px,1fr);padding-inline:18px;gap:18px}
.brand-wrap{gap:6px}.sidebar-open{margin:0 6px 0 0;flex:0 0 auto}.sidebar-collapsed .sidebar-open{display:inline-flex}.sidebar-collapsed .brand{display:flex}.sidebar-collapsed .brand-copy{display:grid}
.global-search-wrap{max-width:680px}.head-actions{min-width:0}
.app-body{grid-template-columns:var(--sidebar-open-width) minmax(0,1fr)}body.sidebar-collapsed .app-body{grid-template-columns:0 minmax(0,1fr)}
.sidebar{width:var(--sidebar-open-width);transition:transform .18s ease}.sidebar-collapsed .sidebar{transform:translateX(-100%)}
.main{padding:30px clamp(24px,3.2vw,52px) 72px}.home-wrap,.search-wrap{max-width:1180px}.article-page{max-width:var(--article-max);margin:0 auto}
.breadcrumbs{margin:0 0 22px;font-size:12px;gap:7px;line-height:1.4}.breadcrumbs strong{max-width:390px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text)}
.article-shell{grid-template-columns:minmax(0,var(--reading-max)) 190px;gap:28px;align-items:start}.article-page.no-aside .article-shell{grid-template-columns:minmax(0,var(--reading-max));justify-content:center}.article-main{width:100%;min-width:0}.article-head{position:relative;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:20px;align-items:start;padding:0 0 24px;border-bottom:1px solid var(--line)}.article-head-main{min-width:0}.article-head .chips{margin-bottom:13px}.article-head h1{max-width:850px;margin:0;color:var(--strong);font-size:clamp(36px,4.2vw,58px);line-height:1.06;letter-spacing:-.042em;text-wrap:balance}.article-head .meta{display:flex;align-items:center;gap:6px;margin-top:12px;padding:0;border:0;color:var(--muted);font-size:12px}.favorite-btn{white-space:nowrap;margin-top:2px}.favorite-btn.active{border-color:color-mix(in srgb,var(--green) 52%,var(--line));background:var(--greenSoft);color:var(--green2)}
.article-aside{top:90px}.article-aside-card{padding:10px;border-radius:12px}.article-aside-card strong{display:flex;align-items:center;gap:6px;padding:3px 5px 8px;margin:0;color:var(--muted)}.article-aside-card button{padding:7px 8px;color:var(--text);line-height:1.35}.article-aside-card button:hover{color:var(--strong)}
.content{display:grid;gap:20px;padding-top:24px}.content>.content-position[data-align="left"]{width:min(88%,860px);justify-self:start}.content>.content-position[data-align="center"]{width:min(88%,860px);justify-self:center}.content>.content-position[data-align="right"]{width:min(88%,860px);justify-self:end}.content>.content-position[data-align="stretch"]{width:100%}
.rendered{line-height:1.7}.rendered h1,.rendered h2,.rendered h3{color:var(--strong);letter-spacing:-.02em}.rendered h2{font-size:24px;margin:8px 0 14px}.rendered h3{font-size:19px}.rendered a,.toc button{color:var(--green2);text-decoration:none}.rendered a:hover,.toc button:hover{text-decoration:underline;text-underline-offset:3px}
.block-collapsible,.section{overflow:hidden;border:1px solid var(--line);border-radius:12px;background:var(--surface)}.block-collapsible>summary,.section>summary{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:46px;padding:10px 14px;cursor:pointer;font-weight:750;list-style:none;color:var(--strong);background:color-mix(in srgb,var(--surface2) 72%,var(--surface));border-bottom:1px solid transparent}.block-collapsible>summary::-webkit-details-marker,.section>summary::-webkit-details-marker{display:none}.block-collapsible[open]>summary,.section[open]>summary{border-bottom-color:var(--line)}.collapse-chevron{display:flex;align-items:center;color:var(--muted);transition:transform .18s ease}.block-collapsible[open]>summary .collapse-chevron,.section[open]>summary .collapse-chevron{transform:rotate(180deg)}.collapse-content{padding:18px 20px 20px}.section-body{display:grid;gap:14px;padding:18px 20px 20px}.collapse-content>.employee,.collapse-content>.reply,.collapse-content>.related-card,.collapse-content>.code,.collapse-content>.image-block,.collapse-content>.formula{width:100%;margin:0}
.employee{padding:19px 20px;border:1px solid var(--yellowLine);border-radius:12px;background:var(--yellow)}.employee>strong{display:block;margin-bottom:8px;color:var(--strong);font-size:15px}.reply{overflow:hidden;border:1px solid color-mix(in srgb,var(--green) 35%,var(--line));border-radius:12px;background:var(--reply)}.reply>header{min-height:46px;padding:0 14px;display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--replyHead);border-bottom:1px solid color-mix(in srgb,var(--green) 28%,var(--line))}.reply .body{padding:19px 20px}
.related-card{display:grid!important;grid-template-columns:38px minmax(0,1fr) 24px;align-items:center;gap:13px;padding:16px 17px!important;border:1px solid var(--line)!important;border-radius:12px!important;background:var(--surface)!important;text-align:left;transition:.14s}.related-card:hover{border-color:color-mix(in srgb,var(--green) 52%,var(--line))!important;background:var(--surface2)!important;box-shadow:var(--shadow2)}.related-icon{width:38px;height:38px;display:grid;place-items:center;border-radius:10px;background:var(--greenSoft);color:var(--green2)}.related-copy{min-width:0}.related-card small,.related-card strong,.related-card .related-copy>span{display:block}.related-card small{margin-bottom:3px;color:var(--green2);font-size:10px;font-weight:850;text-transform:uppercase;letter-spacing:.04em}.related-card strong{color:var(--strong);font-size:15px}.related-card .related-copy>span{margin-top:3px;color:var(--muted);font-size:12px;line-height:1.45}.related-arrow{color:var(--muted)}
.image-block{margin:0;display:grid;justify-items:center;overflow:hidden}.image-block img{display:block;max-width:100%;height:auto;object-fit:contain;border-radius:10px}.image-block figcaption{margin-top:8px;color:var(--muted);font-size:12px;text-align:center}.rendered img,.rendered .inline-rich-image img{max-width:100%!important;height:auto!important}.rendered figure.inline-rich-image{max-width:100%;margin-left:auto!important;margin-right:auto!important}.rendered figure.inline-rich-image img{display:block;margin-inline:auto;border-radius:10px}
.toc{padding:0;background:transparent;border:0}.toc h2{margin:0 0 12px;color:var(--strong);font-size:20px}.toc ul{display:grid;gap:3px;margin:0;padding:0;list-style:none}.toc li{margin:0}.toc button{border:0;background:transparent;padding:5px 0;text-align:left;cursor:pointer;font-size:14px}
.tabs{overflow:hidden;border:1px solid var(--line);border-radius:12px;background:var(--surface)}.tabs-title{margin:0;padding:14px 16px 0;color:var(--strong)}.tabbar{display:flex;gap:4px;padding:10px 10px 0;overflow:auto;border-bottom:1px solid var(--line)}.tabbar button{border:0;border-radius:8px 8px 0 0;background:transparent;padding:9px 12px;cursor:pointer;color:var(--muted);font-weight:700;white-space:nowrap}.tabbar button.active{background:var(--surface2);color:var(--strong);box-shadow:inset 0 -2px var(--green)}.tabpanel{display:grid;gap:16px;padding:18px}.tabpanel>.content-position{width:100%!important;justify-self:stretch!important}
.code{overflow:hidden;border:1px solid var(--line);border-radius:12px;background:var(--code)}.code-head{min-height:44px;padding:0 12px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid rgba(255,255,255,.08)}.code-head>div{display:flex;align-items:center;gap:8px;min-width:0}.code-language{padding:3px 6px;border-radius:6px;background:rgba(255,255,255,.08);color:#dbe6db;font-size:10px;text-transform:uppercase}.code-comment{color:#9ead9f;font-size:11px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.code pre{margin:0;padding:17px 18px;overflow:auto;color:var(--codeText);font:12.5px/1.65 ui-monospace,SFMono-Regular,Consolas,monospace}.copy-btn{min-height:30px;padding:0 8px;border:0;border-radius:7px;background:transparent;color:inherit;display:inline-flex;align-items:center;gap:6px;cursor:pointer}.copy-btn:hover{background:rgba(255,255,255,.08)}
@media(max-width:1180px){.article-shell{grid-template-columns:minmax(0,1fr)}.article-aside{display:none}.article-page{max-width:900px}.article-head h1{font-size:clamp(34px,5vw,52px)}}
@media(max-width:900px){.app-head{grid-template-columns:minmax(0,1fr) auto}.brand-wrap{display:none}.global-search-wrap{max-width:none}.app-body{grid-template-columns:0 minmax(0,1fr)}.sidebar{position:fixed;left:0;top:68px;z-index:70;transform:translateX(-105%);box-shadow:var(--shadow);width:min(310px,88vw)}.sidebar.mobile-open{transform:translateX(0)}.sidebar-open{display:inline-flex!important;position:fixed;left:10px;top:14px;z-index:82}.main{padding:24px 18px 60px}.article-head{grid-template-columns:1fr}.favorite-btn{justify-self:start}.article-head h1{font-size:clamp(32px,9vw,46px)}.content>.content-position[data-align]{width:100%}}
@media(max-width:620px){.global-search-wrap kbd{display:none}.global-search{padding-right:14px}.theme-label{display:none}.icon-button.with-label{padding:0;width:40px}.breadcrumbs strong{display:none}.article-head h1{font-size:34px}.article-grid,.search-results{grid-template-columns:1fr}}

/* ServHost Learning 0.3.3 — article mode + admin-compatible image rendering */
body.article-mode .recent-section{display:none!important}
.article-page,.article-shell,.article-main{min-width:0}
.article-page.no-aside .article-shell{display:block;max-width:var(--reading-max);margin-inline:auto}
.article-aside{display:none!important}

/* Standalone image block: same model as admin preview — block owns alignment, image owns saved width %. */
.image-block{width:100%;max-width:100%;margin:0;display:grid;justify-items:center;overflow:visible}
.image-block img{display:block;max-width:100%!important;height:auto!important;object-fit:contain;border-radius:10px}
.content-position[data-align="left"] .image-block{justify-items:start}
.content-position[data-align="center"] .image-block{justify-items:center}
.content-position[data-align="right"] .image-block{justify-items:end}
.content-position[data-align="stretch"] .image-block{justify-items:center}

/* Inline rich-text image: preserve the width:<n>% written by the admin editor. */
.rendered figure.inline-rich-image{display:block;max-width:100%!important;margin-top:1.15em!important;margin-bottom:1.15em!important;padding:0;border:0}
.rendered figure.inline-rich-image img{display:block;width:100%!important;max-width:100%!important;height:auto!important;object-fit:contain;border-radius:8px}
.rendered figure.inline-rich-image figcaption{margin-top:7px;color:var(--muted);font-size:.88em;text-align:center}
.rendered>img{display:block;max-width:100%!important;height:auto!important;object-fit:contain}

@media(max-width:760px){
  .image-block img,.rendered figure.inline-rich-image,.rendered figure.inline-rich-image img,.rendered>img{max-width:100%!important}
}