/* 1.6.20 grouped navigation and knowledge workspace; business page layout stays intact. */
.sidebar{display:flex;flex-direction:column;overflow:hidden;padding-bottom:12px}
.sidebar .brand{flex-shrink:0;padding-bottom:24px}
.sidebar .grouped-nav{display:block;flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;padding:4px 4px 14px;scrollbar-width:thin;scrollbar-color:#d8e1f0 transparent}
.sidebar .sidebar-foot{flex-shrink:0;margin-top:0;padding-top:10px;border-top:1px solid #edf1f7}
.sidebar .sidebar-foot .version{padding:5px 10px 10px}
.grouped-nav>button,.sidebar nav .nav-children>button{width:100%;font-size:14px}
.sidebar .grouped-nav>button{min-height:46px;margin:3px 0}
.nav-group{margin:4px 0;border-radius:12px}
.nav-group summary{display:flex;align-items:center;gap:12px;list-style:none;cursor:pointer;padding:13px 14px;border-radius:11px;font-size:14px;color:#526984;user-select:none;min-height:46px}
.nav-group summary::-webkit-details-marker{display:none}
.nav-group summary>svg{width:20px;height:20px;flex-shrink:0}
.sidebar .nav-group summary>span{width:auto;font-size:14px;text-align:left;flex:1}
.nav-group summary:hover{background:#f2f6fc;color:#245bd0}
.nav-group.has-active>summary{color:#245bd0;font-weight:650}
.nav-group[open]>summary{background:#f5f8fd}
.nav-chevron{width:7px;height:7px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(-45deg);transition:transform .18s;margin-left:auto;flex-shrink:0}
.nav-group[open] .nav-chevron{transform:rotate(45deg)}
.nav-children{padding:5px 0 7px 13px;margin:0 0 0 22px;border-left:1px solid #dfe7f3}
.sidebar nav .nav-children>button{padding:10px 12px;min-height:42px;font-size:13px;margin:2px 0;color:#6b7c94;gap:0}
.nav-children>button>svg{display:none}
.sidebar nav .nav-children>button.active{background:#e8efff;color:#2254c3;box-shadow:none;font-weight:650}
.grouped-nav [hidden],.grouped-nav .hidden{display:none!important}
.nav-group summary:focus-visible{outline:3px solid #a4c2ff;outline-offset:-2px}
.kb-topbar{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:20px}
.kb-tabs{display:flex;gap:10px}.kb-topbar button{min-height:42px}
.kb-setup{text-align:center;padding:60px 28px;color:#65778e}.kb-setup h2{margin:18px 0 10px;color:#243853}
.kb-feature-icon{display:inline-flex;align-items:center;justify-content:center;width:56px;height:56px;border-radius:18px;background:linear-gradient(135deg,#e5eeff,#eff6ff);color:#3165d5;font-weight:750;font-size:20px;letter-spacing:1px}
.kb-search{display:flex;gap:10px;padding:20px 22px;border-bottom:1px solid #e8edf5}.kb-search input{flex:1;min-width:0}.kb-search button{flex-shrink:0}
.kb-doc-layout{display:grid;grid-template-columns:290px minmax(0,1fr);min-height:620px}
.kb-catalog{background:#fafcff;border-right:1px solid #e5ebf4;padding:18px 12px;min-width:0}
.kb-catalog-head{display:flex;align-items:center;justify-content:space-between;padding:0 8px 12px}.kb-catalog-head b{font-size:14px;color:#52667f}
.kb-catalog>select{font-size:13px;padding:9px;margin-bottom:14px;background:#fff}
.kb-doc-list{max-height:570px;overflow-y:auto;scrollbar-width:thin}
.kb-doc-item{display:flex;gap:10px;width:100%;background:transparent;border:1px solid transparent;border-radius:11px;padding:13px 10px;text-align:left;margin-bottom:5px;min-width:0;color:#344b67}
.kb-doc-item:hover{background:#f0f5ff}.kb-doc-item.active{background:#eaf1ff;border-color:#cbdbfa;color:#2353bd}
.kb-file-icon{font-size:10px;font-weight:700;color:#6e8bbc;background:#edf2fa;border-radius:6px;padding:7px 4px;align-self:flex-start;margin-top:2px}
.kb-doc-item>span:last-child{min-width:0}.kb-doc-item b{font-size:14px;line-height:1.5;display:block;overflow-wrap:anywhere}
.kb-doc-item small{display:block;font-size:11px;color:#8190a4;overflow-wrap:anywhere;margin-top:4px}.kb-doc-item em{display:block;font-size:10px;color:#8998aa;font-style:normal;margin-top:6px}
#kbPagination{font-size:12px;color:#7b8ba0;text-align:center;padding-top:14px;border-top:1px solid #e7edf6;margin-top:12px}#kbPagination small{display:block}
.kb-reader{padding:28px 32px;min-width:0;scroll-margin-top:20px}
.kb-reader-empty{text-align:center;padding:125px 10px;color:#7e8da1}.kb-reader-empty h2{font-size:20px;color:#425973;margin-top:20px}.kb-reader-empty p{font-size:14px}
.kb-reader-head{display:flex;justify-content:space-between;gap:18px;padding-bottom:20px;border-bottom:1px solid #e8edf5;flex-wrap:wrap}
.kb-overline{font-size:11px;letter-spacing:1px;color:#8597ae;display:block;margin-bottom:8px}.kb-reader-head h2{font-size:23px;line-height:1.5;overflow-wrap:anywhere}.kb-reader-head p{font-size:12px;color:#8696aa;margin:7px 0 0;overflow-wrap:anywhere}.kb-reader-actions{display:flex;gap:8px;align-items:flex-start;flex-wrap:wrap}
.kb-markdown{font-size:15px;line-height:1.85;color:#3d4e66;overflow-wrap:anywhere}.kb-markdown h1,.kb-markdown h2,.kb-markdown h3{line-height:1.55;margin:26px 0 14px;color:#253b58;letter-spacing:0}.kb-markdown h1{font-size:25px}.kb-markdown h2{font-size:21px}.kb-markdown h3{font-size:18px}
.kb-markdown p{margin:12px 0}.kb-markdown img{display:block;max-width:100%;height:auto;border-radius:9px;margin:16px 0}.kb-markdown pre,.kb-message pre,.kb-conflict{white-space:pre-wrap;overflow-wrap:anywhere;background:#f3f6fb;border:1px solid #e6ecf4;padding:16px;border-radius:10px;font-size:13px;line-height:1.7;overflow:auto}
.kb-markdown code,.kb-message code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;background:#edf2f8;border-radius:4px;padding:2px 4px;font-size:.9em}.kb-markdown pre code,.kb-message pre code{padding:0;background:none}
.kb-markdown blockquote{margin:8px 0;padding:10px 16px;border-left:3px solid #79a5ec;background:#f4f8ff;border-radius:0 8px 8px 0}.kb-markdown hr{border:0;border-top:1px solid #e7edf5;margin:24px 0}.kb-list-line{padding:3px 0 3px 12px}.kb-properties{margin:15px 0;color:#7b8da5;font-size:13px}.kb-properties summary{cursor:pointer}.kb-doc-link{border:0;padding:0 2px;background:none;color:#2e62c8;text-decoration:underline;text-underline-offset:3px;white-space:normal;text-align:left;overflow-wrap:anywhere;font:inherit}
.kb-table{overflow:auto}.kb-table table{font-size:13px}.kb-table th,.kb-table td{padding:10px 12px}
.kb-editor-label{margin-top:18px}.kb-editor-label textarea{min-height:440px;line-height:1.8;font:14px/1.8 ui-monospace,SFMono-Regular,Consolas,monospace;resize:vertical}.kb-error{font-size:13px;color:#b44455;white-space:pre-wrap;overflow-wrap:anywhere;margin:10px 0}.kb-error:empty{display:none}.kb-empty{font-size:13px;color:#8594a7;line-height:1.8;padding:20px 10px}.kb-history-list{display:grid;gap:10px}
.kb-acl-rows{margin-top:20px;max-height:50vh;overflow:auto}.kb-acl-rows label{display:grid;grid-template-columns:minmax(0,1fr) 120px;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid #edf1f7}.kb-acl-rows span{overflow-wrap:anywhere}.kb-acl-rows select{padding:8px;font-size:13px}
.kb-chat-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:20px;align-items:start}
.kb-chat{min-width:0}.kb-chat-head{padding:18px 22px;border-bottom:1px solid #e8edf5;display:flex;justify-content:space-between;align-items:center;gap:10px}.kb-chat-head>div{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.kb-chat-head b{font-size:15px}.kb-chat-head small{font-size:11px;color:#8796a9;background:#f2f5fa;padding:3px 8px;border-radius:20px}.kb-online-dot{width:8px;height:8px;border-radius:50%;background:#648bd6}
.kb-messages{height:430px;overflow-y:auto;padding:24px;scrollbar-width:thin}.kb-chat-welcome{text-align:center;color:#8b98aa;padding:65px 10px 30px}.kb-chat-welcome h2{font-size:22px;color:#324966;margin:20px 0 12px}.kb-chat-welcome p{font-size:14px;line-height:1.9}.kb-chat-welcome>div{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:22px}.kb-chat-welcome>div span{font-size:12px;border:1px solid #e2e9f4;border-radius:20px;padding:5px 12px;background:#fbfcff}
.kb-message{margin-bottom:22px;max-width:100%;overflow-wrap:anywhere}.kb-message-label{font-size:11px;color:#8596ac;display:block;margin-bottom:6px}.kb-message-body{font-size:14px;line-height:1.85}.kb-message.user{margin-left:12%;text-align:right}.kb-message.user .kb-message-body{display:inline-block;background:#edf3ff;padding:12px 17px;text-align:left;border-radius:15px 15px 3px 15px;color:#31547e;white-space:pre-wrap}.kb-message.assistant .kb-message-body{padding:4px 0}.kb-message.assistant p{margin:8px 0}.kb-message.assistant h1,.kb-message.assistant h2,.kb-message.assistant h3{font-size:17px;margin:16px 0 8px}
.kb-sources{background:#f8faff;border:1px solid #e2eafa;border-radius:10px;padding:11px 14px;margin-top:12px;font-size:12px}.kb-sources summary{cursor:pointer;color:#587bb7}.kb-sources>div{padding:12px 0;border-top:1px solid #e5ecf7;margin-top:10px}.kb-sources small{display:block;color:#8492a7;margin:5px 0}.kb-sources p{white-space:pre-wrap;max-height:180px;overflow:auto;color:#6b7c92;line-height:1.8}
.kb-composer{border-top:1px solid #e8edf5;padding:18px 22px 20px}.kb-chat-options{display:flex;gap:18px;margin-bottom:12px}.kb-chat-options label{display:flex;flex-direction:row;align-items:center;gap:6px;font-size:12px}.kb-chat-options input{width:auto;accent-color:#3164d7}.kb-composer textarea{resize:vertical;min-height:90px;font-size:14px;border-color:#dce5f2;border-radius:12px}.kb-compose-foot{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:10px}.kb-compose-foot>span{font-size:11px;color:#94a1b2}.kb-compose-foot>button{min-width:105px}
.kb-chat-aside{display:grid;gap:16px}.kb-tips{padding:23px}.kb-tips h2{font-size:20px;margin:8px 0 14px}.kb-tips p{font-size:13px;line-height:1.9;color:#8190a4}.kb-tips b{font-size:13px;color:#556e90}.kb-tip-rule{height:1px;background:#e7edf6;margin:20px 0}.kb-thinking{font-size:12px;color:#7890b0;padding:12px 0;display:flex;align-items:center;gap:8px}.kb-thinking i{width:7px;height:7px;border-radius:50%;background:#739de3;animation:kb-pulse 1.2s infinite}@keyframes kb-pulse{50%{opacity:.3}}
@media(min-width:801px){.sidebar{height:100vh;height:100dvh}}
@media(max-width:1100px){.kb-chat-layout{grid-template-columns:minmax(0,1fr)}.kb-chat-aside{grid-template-columns:1fr 1fr}.kb-doc-layout{grid-template-columns:245px minmax(0,1fr)}.kb-reader{padding:22px}}
@media(max-width:800px){.sidebar{height:100vh;height:100dvh}.kb-topbar{gap:8px}.kb-topbar button{font-size:13px;padding:9px 12px}.kb-doc-layout{grid-template-columns:minmax(0,1fr)}.kb-catalog{border-right:0;border-bottom:1px solid #e5ebf4;padding:14px}.kb-doc-list{max-height:240px}.kb-reader{padding:20px 16px}.kb-reader-empty{padding:40px 10px}.kb-reader-head h2{font-size:21px}.kb-search{padding:14px;flex-wrap:wrap}.kb-search input{flex-basis:100%}.kb-chat-head{padding:15px}.kb-messages{height:46dvh;min-height:270px;padding:16px}.kb-chat-welcome{padding:30px 0}.kb-chat-welcome h2{font-size:19px}.kb-composer{padding:14px}.kb-compose-foot>span{max-width:180px}.kb-chat-aside{grid-template-columns:1fr}.kb-tips{padding:20px}.kb-markdown{font-size:14px}.kb-acl-rows label{grid-template-columns:minmax(0,1fr) 108px}.kb-editor-label textarea{min-height:340px}.kb-table table,.kb-table tbody{display:table}.kb-table tr{display:table-row}.kb-table th,.kb-table td{display:table-cell}.kb-table thead{display:table-header-group}}
@media(prefers-reduced-motion:reduce){.kb-thinking i{animation:none}.nav-chevron{transition:none}}