:root{font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",system-ui,sans-serif;color:#172b42;background:#f3f6f9;font-synthesis:none;--ink:#172b42;--muted:#7a8795;--line:#e8edf2;--primary:#087f86;--primary-soft:#eaf5f4;--navy:#17394d;--surface:#fff;--shadow:0 18px 65px #172b4215}*{box-sizing:border-box}body{margin:0}button,input,textarea{font:inherit}button,a,input,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default;opacity:.45}button{transition:background .15s,color .15s,box-shadow .15s}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid #168b91;outline-offset:2px}button,input,textarea{border:0}button{color:inherit}input,textarea{border-radius:9px;background:#f7f9fb;color:var(--ink)}input{width:100%;padding:12px 13px;border:1px solid var(--line);outline-offset:1px}input::placeholder,textarea::placeholder{color:#9aa6b2}input:focus,textarea:focus{border-color:#7bc6c6}h1,h2,p{margin:0}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.app-shell{height:var(--chat-viewport-height,100dvh);min-height:0;padding:0 22px 22px;max-width:1920px;margin:auto;display:flex;flex-direction:column}.app-header{height:87px;flex-shrink:0;display:flex;align-items:center;gap:30px}.brand{display:flex;align-items:center;gap:12px}.brand-mark{display:flex;align-items:center;justify-content:center;width:43px;height:43px;border-radius:13px;background:var(--navy);color:white;font-size:36px;line-height:1;box-shadow:inset 0 0 0 1px #ffffff0d}.brand strong{display:block;font-size:17px;letter-spacing:.5px;font-weight:650}.brand small{display:block;font-size:9px;letter-spacing:2.1px;margin-top:5px;color:#81919e}.header-status{display:flex;align-items:center;gap:17px;margin-left:12px}.environment-tag{font-size:10px;letter-spacing:.6px;border:1px solid #dbe4eb;border-radius:5px;color:#6a7e8c;padding:4px 7px}.connection-status{display:flex;align-items:center;gap:7px;font-size:11px;color:#758390}.connection-status i{width:6px;height:6px;border-radius:50%;background:#e2ae5a}.connection-status.connected i{background:#23998e}.connection-status.offline i{background:#c58775}.account-area{margin-left:auto;display:flex;align-items:center;gap:16px;font-size:12px}.account-name{max-width:170px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.text-button{font-size:12px;color:var(--primary);padding:6px 4px;background:transparent;border-radius:5px}.text-button:hover{background:var(--primary-soft)}.workspace{display:grid;grid-template-columns:268px minmax(340px,1fr) 282px;background:white;border:1px solid #e0e7ee;box-shadow:0 6px 28px #19374705;border-radius:15px;min-height:0;flex:1;overflow:hidden}.conversation-panel{border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0;background:#fbfcfd}.panel-heading{padding:26px 22px 18px;display:flex;align-items:center;gap:12px}.panel-heading>div{flex:1}.eyebrow{font-size:9px;letter-spacing:1.7px;font-weight:650;color:#91a0ae;display:block}.panel-heading h1{font-size:23px;margin-top:8px;letter-spacing:1px;font-weight:650}.icon-button{width:34px;height:34px;flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;background:transparent;border-radius:9px;font-size:25px;color:#7b8d9a}.icon-button:hover{background:#eaf0f4;color:var(--ink)}.icon-button.accent{background:var(--primary-soft);color:var(--primary);font-size:24px}.icon-button.accent:hover{background:#d8efed}.conversation-tools{padding:0 18px 19px}.search-field{display:flex;align-items:center;background:#f0f4f7;border:1px solid #eaf0f4;border-radius:8px;gap:8px;padding-left:11px;color:#8a9ba9}.search-field input{padding:10px 7px;border:0;background:transparent;font-size:11px;min-width:0}.search-field>span{font-size:21px;line-height:1}.conversation-list{flex:1;min-height:0;overflow-y:auto;padding:0 10px 10px;scrollbar-width:thin}.conversation-item{display:flex;align-items:center;width:100%;gap:11px;text-align:left;background:transparent;border-radius:10px;padding:13px 10px;margin-bottom:3px}.conversation-item:hover{background:#f0f5f7}.conversation-item.active{background:#e9f3f3}.conversation-avatar,.avatar{display:flex;align-items:center;justify-content:center;flex-shrink:0;color:#447883;background:#e5f0f1;width:39px;height:39px;border-radius:12px;font-size:15px;font-weight:600}.conversation-item:nth-child(3n+2) .avatar{background:#ecebf5;color:#7b76a0}.conversation-item:nth-child(3n) .avatar{background:#f4eee4;color:#9a8364}.conversation-text{flex:1;min-width:0}.conversation-line{display:flex;align-items:center;gap:6px;min-width:0}.conversation-line strong{font-size:12px;font-weight:650;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.conversation-time{font-size:9px;color:#8d9aa6;flex-shrink:0}.conversation-preview{margin-top:7px;display:flex;gap:5px;color:#8795a2;font-size:10px;line-height:1.3}.conversation-preview>span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.unread-badge{font-size:9px;background:var(--primary);color:white;border-radius:10px;min-width:16px;text-align:center;padding:1px 4px}.list-empty{text-align:center;padding:55px 15px 25px;color:#97a3af;font-size:11px;line-height:1.9}.list-empty strong{display:block;font-size:13px;color:#687d8e;font-weight:500;margin-bottom:6px}.list-empty button{margin-top:10px}.workspace-note{border-top:1px solid var(--line);padding:19px 21px;display:flex;gap:9px;align-items:flex-start}.note-dot{height:6px;width:6px;border-radius:50%;background:#81b7b5;margin-top:4px;flex-shrink:0}.workspace-note strong{font-size:10px;font-weight:500;display:block;color:#687c8c}.workspace-note span:not(.note-dot){font-size:9px;display:block;margin-top:5px;color:#a2adb7}.chat-panel{min-width:0;min-height:0;display:flex;flex-direction:column;position:relative;background:#fff}.chat-heading{display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--line);padding:20px 26px;min-height:82px;flex-shrink:0}.chat-title{min-width:0;flex:1}.chat-title h2{font-size:14px;font-weight:650;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-title p{font-size:10px;color:#8c9ba7;margin-top:6px}.chat-heading .conversation-avatar{width:36px;height:36px;border-radius:11px;font-size:13px}.chat-empty{display:flex;align-items:center;justify-content:center;text-align:center;flex-direction:column;flex:1;padding:35px 20px}.empty-illustration{position:relative;width:110px;height:105px;margin-bottom:30px}.illustration-main{position:absolute;width:77px;height:61px;top:12px;left:9px;border-radius:22px 22px 22px 4px;border:1px solid #c8dedf;background:linear-gradient(135deg,#f4faf9,#e8f3f3);display:flex;align-items:center;justify-content:center;color:#79abae;letter-spacing:7px;font-size:27px;padding-bottom:11px;padding-left:5px;box-shadow:0 13px 30px #406e7510}.illustration-small{position:absolute;bottom:4px;right:2px;display:flex;align-items:center;justify-content:center;width:39px;height:35px;background:white;border:1px solid #d9e6ec;border-radius:12px 12px 3px 12px;color:#7698a2;font-size:24px;box-shadow:0 5px 15px #406e7510}.chat-empty>.eyebrow{font-size:8px;letter-spacing:2.2px;color:#8da4ad}.chat-empty h2{font-size:20px;letter-spacing:1px;font-weight:550;margin:13px 0 14px}.chat-empty p{font-size:11px;color:#8a9aa7;line-height:1.9}.primary-button{display:inline-flex;align-items:center;justify-content:center;gap:20px;background:var(--primary);color:white;border-radius:8px;padding:12px 20px;font-size:12px;font-weight:550;box-shadow:0 4px 10px #087f8610}.primary-button:hover:not(:disabled){background:#076d74}.chat-empty .primary-button{margin-top:25px}.empty-caption{font-size:9px;color:#b0bac2;margin-top:18px}.message-view{flex:1;min-height:0;overflow-y:auto;padding:18px 28px 24px;background:#f9fbfc;scrollbar-width:thin;scroll-behavior:auto}.history-control{text-align:center;font-size:10px;color:#9aa7b1;min-height:22px;margin-bottom:10px}.history-control #historyStatus{display:block}.message-list{display:flex;flex-direction:column;gap:17px}.day-separator{align-self:center;font-size:10px;color:#8d9ba7;background:#eef2f5;border-radius:15px;padding:5px 12px;margin:9px 0}.message-row{display:flex;gap:9px;align-items:flex-start;max-width:88%;align-self:flex-start;min-width:0}.message-row.own{align-self:flex-end;flex-direction:row-reverse}.message-avatar{width:29px;height:29px;border-radius:10px;font-size:11px;background:#e9f0f4;color:#69818e}.message-content{min-width:0}.sender-name{display:block;font-size:9px;color:#8194a2;margin:0 0 5px 3px}.message-bubble{background:#fff;border:1px solid #e8eef3;border-radius:1px 12px 12px 12px;padding:11px 13px;box-shadow:0 2px 5px #223d4a03}.own .message-bubble{background:#e5f3f1;border-color:#d9edeb;border-radius:12px 1px 12px 12px}.message-body{white-space:pre-wrap;word-break:break-word;overflow-wrap:anywhere;font-size:12px;line-height:1.75}.message-meta{display:flex;align-items:center;gap:7px;justify-content:flex-end;margin-top:5px;color:#a0acb5;font-size:9px}.message-meta button{background:transparent;color:#8096a3;font-size:9px;padding:2px 4px;border-radius:3px}.message-meta button:hover{background:#e4edef}.message-plugin-actions{display:flex;flex-wrap:wrap;gap:5px;margin-top:5px}.message-plugin-actions:empty{display:none}.message-quote{border-left:2px solid #6bacac;background:#76b2b50c;padding:6px 9px;margin-bottom:8px;border-radius:0 5px 5px 0;font-size:10px;color:#719095}.message-quote strong{display:block;margin-bottom:4px;color:#47878b;font-weight:550}.message-quote span{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:290px}.composer{padding:15px 25px 17px;border-top:1px solid var(--line);flex-shrink:0;background:#fff}.composer-tools{display:flex;align-items:center;gap:12px;font-size:10px;color:#8296a3;margin-bottom:10px;min-height:18px}.plugin-toolbar{display:flex;gap:6px;flex:1;flex-wrap:wrap}.plugin-toolbar button,.message-plugin-actions button{background:#eff6f6;color:#4b878d;font-size:10px;padding:5px 8px;border-radius:5px}.composer-limit{margin-left:auto;font-size:9px;color:#b0bbc3}.composer textarea{background:white;width:100%;display:block;resize:none;border:0;outline:none;padding:3px 0 8px;font-size:12px;line-height:1.8;min-height:52px;max-height:180px}.composer-bottom{display:flex;align-items:center;justify-content:space-between;gap:10px}.keyboard-hint{font-size:9px;color:#a3afb9}.send-button{min-height:44px;border-radius:8px;display:flex;align-items:center;gap:13px;background:var(--primary);color:#fff;padding:9px 14px;font-size:11px}.send-button>span:last-child{font-size:17px;line-height:1}.send-button:hover:not(:disabled){background:#076d74}.chat-error{padding:10px 22px;color:#9c6655;background:#fff5ef;font-size:11px;display:flex;align-items:center;gap:10px}.chat-error>span{flex:1}.extension-panel{background:#fcfdfe;border-left:1px solid var(--line);padding:28px 21px 17px;display:flex;flex-direction:column;overflow-y:auto;scrollbar-width:thin}.extension-heading{display:flex;align-items:center;gap:10px}.extension-heading>div{flex:1}.extension-heading h2{font-size:17px;font-weight:600;margin-top:9px;letter-spacing:.5px}.count-badge{background:#edf3f5;color:#83a0ad;padding:3px 7px;font-size:10px;border-radius:5px}.extension-intro{font-size:10px;color:#92a1ad;line-height:1.8;margin:13px 0 22px}.core-card{background:#f1f6f8;border:1px solid #e4edf1;border-radius:10px;display:flex;gap:10px;align-items:center;padding:14px 12px}.core-icon{font-size:28px;color:#608a9e}.core-card>div{flex:1}.core-card strong{font-size:11px;display:block;font-weight:600}.core-card div span{font-size:9px;color:#8b9fac;margin-top:6px;display:block}.state-label{font-size:8px;color:#8da6ae;background:white;border:1px solid #e3ecef;border-radius:4px;padding:3px 5px}.section-label{display:flex;justify-content:space-between;font-size:9px;letter-spacing:.4px;color:#8e9da9;margin:25px 0 12px}.plugin-list{display:flex;flex-direction:column;gap:9px}.plugin-card{border:1px solid #e5edf1;border-radius:10px;padding:14px 12px;background:white}.plugin-card-head{display:flex;align-items:center;gap:8px}.plugin-icon{width:25px;height:25px;display:flex;align-items:center;justify-content:center;background:#edf7f5;color:#6a9b94;border-radius:7px;font-size:15px}.plugin-card strong{font-size:11px;flex:1;font-weight:550}.plugin-card p{font-size:9px;color:#91a0ab;line-height:1.75;margin:10px 0}.plugin-card footer{display:flex;gap:5px;align-items:center;font-size:8px;color:#9cabb6}.plugin-card footer i{height:4px;width:4px;border-radius:50%;background:#56ad97}.plugin-card footer span:last-child{margin-left:auto}.plugins-empty{border:1px dashed #dce8ec;border-radius:10px;padding:18px 12px;font-size:10px;color:#93a3ad;line-height:1.9}.side-panel-slots{display:flex;flex-direction:column;gap:12px;margin-top:15px}.side-panel-slots:empty{display:none}.side-panel-slots>section,.side-panel-slots>div{padding:13px;border:1px solid #e4edf1;border-radius:10px;background:white;font-size:11px;line-height:1.7;overflow-wrap:anywhere}.side-panel-slots h3{font-size:12px;margin:0 0 9px}.side-panel-slots button{background:var(--primary-soft);color:var(--primary);padding:7px 9px;border-radius:6px;font-size:10px}.architecture-note{margin:30px 0 22px;padding:18px 13px;background:#f5f8fa;border-radius:9px;color:#95a7b2}.architecture-note>span{font-size:22px;display:block;margin-bottom:12px}.architecture-note strong{font-size:10px;font-weight:500;color:#7e95a3}.architecture-note p{font-size:9px;line-height:1.9;margin-top:8px}.version-note{margin-top:auto;padding-top:22px;display:flex;justify-content:space-between;color:#b4bec6;font-size:7px;letter-spacing:1px}.mobile-back,.plugin-toggle,.extension-close{display:none}dialog{border:1px solid #dce6ec;border-radius:17px;background:white;box-shadow:var(--shadow);color:var(--ink);padding:0}dialog::backdrop{background:#183b5052;backdrop-filter:blur(5px)}.auth-dialog[open]{display:grid;grid-template-columns:310px 395px;max-width:calc(100vw - 32px);max-height:calc(100dvh - 32px)}.auth-story{padding:36px 34px;display:flex;flex-direction:column;background:linear-gradient(145deg,#183d51,#102f43);color:#fff;position:relative;overflow:hidden}.auth-story:after{content:"";position:absolute;width:210px;height:210px;border:1px solid #ffffff08;transform:rotate(35deg);border-radius:34px;bottom:70px;right:-125px;box-shadow:0 0 0 36px #ffffff03,0 0 0 72px #ffffff02;pointer-events:none}.auth-story>.brand-mark{background:#ffffff10;border:1px solid #ffffff15;box-shadow:none;margin-bottom:56px}.auth-story>.eyebrow{font-size:7px;color:#7cabb7;letter-spacing:1.7px}.auth-story h2{font-size:26px;font-weight:500;line-height:1.7;letter-spacing:1px;margin-top:15px}.auth-story>p{font-size:11px;color:#91b1be;line-height:1.9;margin-top:20px}.auth-points{display:flex;flex-direction:column;gap:15px;margin:43px 0 35px;font-size:8px;letter-spacing:.5px;color:#759ba9}.auth-points strong{font-size:10px;color:#b2cbd4;margin-left:14px;font-weight:400;letter-spacing:1px}.story-caption{margin-top:auto;color:#608895;font-size:7px;letter-spacing:1px;line-height:1.7}.auth-content{padding:45px 38px 32px;overflow:auto}.auth-content>h1{font-size:25px;font-weight:600;margin:10px 0 11px;letter-spacing:.5px}.auth-subtitle{font-size:11px;color:#93a1ad;line-height:1.7}.segmented-control{padding:4px;background:#f1f5f7;border-radius:9px;display:flex;gap:4px;margin:27px 0 24px}.segmented-control>button{flex:1;padding:9px 12px;border-radius:6px;background:transparent;font-size:11px;color:#889aa7}.segmented-control>button[aria-selected=true]{background:white;color:var(--primary);box-shadow:0 1px 5px #19374708}#authForm>label,.field-label{display:block;font-size:11px;color:#708492;margin-bottom:17px}#authForm input,.field-label input{display:block;margin-top:8px;font-size:11px;padding:12px}.auth-submit{width:100%;margin-top:7px}.auth-footnote{font-size:9px;color:#a5b2bd;line-height:1.9;margin-top:23px}.form-error{font-size:10px;line-height:1.8;color:#b16f5d;background:#fff4ef;padding:9px 11px;border-radius:7px;margin:10px 0}.new-dialog{width:420px;max-width:calc(100vw - 32px);padding:26px;max-height:calc(100dvh - 32px);overflow-y:auto}.dialog-header{display:flex;align-items:center;gap:12px}.dialog-header>div{flex:1}.dialog-header h2{font-size:20px;font-weight:550;margin-top:8px}.dialog-help{font-size:10px;color:#8e9fab;line-height:1.8}.user-search-results{display:flex;flex-direction:column;gap:6px;max-height:260px;overflow-y:auto;margin-top:16px}.user-result{display:flex;align-items:center;gap:11px;border:1px solid var(--line);border-radius:9px;background:white;padding:11px;text-align:left;width:100%}.user-result:hover,.user-result.selected{background:#eff7f6;border-color:#cce4e1}.user-result>div{flex:1;min-width:0}.user-result strong{display:block;font-size:12px;font-weight:550;overflow:hidden;text-overflow:ellipsis}.user-result small{display:block;font-size:10px;color:#8b9fab;margin-top:5px}.user-result>span:last-child{font-size:11px;color:#7a9da5}.selected-users{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}.selected-user{padding:6px 9px;background:#eaf5f4;color:#518a8c;font-size:10px;border-radius:6px;display:flex;gap:8px;align-items:center}.selected-user button{background:transparent;color:#679a9d;padding:0;font-size:14px}.create-group-button{width:100%;margin-top:20px}.toast-container{position:fixed;bottom:30px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:8px;z-index:1000;pointer-events:none;max-width:calc(100vw - 30px)}.toast{border:1px solid #dae6ec;background:#17394df2;color:white;font-size:11px;border-radius:9px;padding:12px 19px;box-shadow:0 7px 22px #183b501a;line-height:1.7}.reply-preview{border-left:2px solid #50a4a6;background:#f3f9f9;padding:8px 10px;border-radius:0 7px 7px 0;display:flex;align-items:center;gap:10px;margin-bottom:12px;font-size:10px;line-height:1.7}.reply-preview>div{flex:1;min-width:0}.reply-preview strong{display:block;color:#508e94;font-weight:550}.reply-preview p{color:#8b9fab;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.reply-preview .icon-button{font-size:20px;width:25px;height:25px}.conversation-details{padding-bottom:20px;margin-bottom:18px;border-bottom:1px solid var(--line)}.details-avatar{width:54px;height:54px;border-radius:18px;font-size:21px;margin:0 auto 12px}.conversation-details h3{text-align:center;font-size:14px;margin:0 0 7px;font-weight:600;overflow-wrap:anywhere}.conversation-details p{text-align:center;color:#93a4af;font-size:10px;line-height:1.7}.sidebar-menu{position:absolute;left:145px;top:73px;z-index:20;min-width:145px;display:flex;flex-direction:column;padding:6px;background:#fff;box-shadow:0 6px 25px #1537471a;border:1px solid var(--line);border-radius:10px}.sidebar-menu button{text-align:left;padding:11px;background:transparent;font-size:11px;border-radius:6px}.sidebar-menu button:hover{background:#edf6f6;color:var(--primary)}.conversation-panel{position:relative}.settings-content{font-size:11px;color:#7c919f;line-height:1.8;margin-top:24px}.settings-row{display:flex;justify-content:space-between;gap:18px;padding:13px 0;border-bottom:1px solid var(--line)}.settings-row strong{font-weight:500;color:var(--ink);overflow-wrap:anywhere}.settings-content p{font-size:10px;margin-top:18px;color:#98a7b2}.settings-content button{margin-top:20px;width:100%}noscript{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:white;z-index:2000} @media(min-width:1450px){.app-shell{padding:0 35px 30px}.app-header{height:100px}.workspace{grid-template-columns:290px minmax(340px,1fr) 305px}.panel-heading{padding:30px 24px 22px}.extension-panel{padding:30px 24px}.message-view{padding-left:40px;padding-right:40px}.composer{padding-left:35px;padding-right:35px}}@media(max-width:1150px){.workspace{grid-template-columns:250px minmax(320px,1fr)}.extension-panel{display:none;position:absolute;right:22px;top:88px;bottom:23px;width:282px;border-radius:0 15px 15px 0;box-shadow:-10px 0 30px #15374712;z-index:30}.extension-panel.open{display:flex}.plugin-toggle,.extension-close{display:inline-flex}.extension-close{font-size:20px;width:25px;height:25px}.count-badge{display:none}.header-status{margin-left:0}}@media(max-width:740px){.app-shell{padding:0;min-height:0}.app-header{height:65px;padding:0 16px;gap:12px;background:#fff;border-bottom:1px solid var(--line)}.brand{gap:9px}.brand-mark{width:34px;height:34px;border-radius:10px;font-size:29px}.brand strong{font-size:14px}.brand small{font-size:7px;letter-spacing:1.5px;margin-top:4px}.header-status{gap:8px;margin-left:auto}.environment-tag{display:none}.connection-status{font-size:9px;gap:5px}.account-area{margin-left:0;gap:8px}.account-name{max-width:70px;font-size:10px}.account-area .text-button{font-size:10px}.workspace{display:block;position:relative;border:0;border-radius:0;overflow:hidden}.conversation-panel{height:100%;border:0}.panel-heading{padding:23px 22px 18px}.panel-heading h1{font-size:24px}.conversation-tools{padding:0 18px 18px}.search-field input{font-size:13px}.conversation-item{padding:14px 12px}.conversation-line strong{font-size:14px}.conversation-preview{font-size:11px}.conversation-time{font-size:10px}.conversation-list{padding:0 9px}.conversation-item .avatar{width:45px;height:45px;font-size:17px}.workspace-note{padding-bottom:calc(20px + env(safe-area-inset-bottom))}.chat-panel{display:none;height:100%;position:absolute;inset:0}.workspace.chat-open .chat-panel{display:flex}.workspace.chat-open .conversation-panel{display:none}.chat-heading{min-height:72px;padding:14px 14px 14px 5px;gap:9px}.mobile-back{display:inline-flex;font-size:35px;width:28px}.chat-title h2{font-size:14px}.chat-title p{font-size:10px}.chat-heading .conversation-avatar{width:35px;height:35px}.message-view{padding:14px 12px 22px}.message-row{max-width:92%}.message-bubble{padding:9px 11px}.message-body{font-size:14px;line-height:1.65}.message-avatar{width:25px;height:25px;border-radius:8px;font-size:10px}.sender-name{font-size:10px}.message-meta{font-size:9px}.composer{padding:10px 14px calc(12px + env(safe-area-inset-bottom))}.composer textarea{font-size:14px;min-height:43px}.keyboard-hint{font-size:8px}.send-button{padding:9px 14px;font-size:12px}.composer-tools{margin-bottom:5px}.extension-panel{position:absolute;inset:0;width:100%;height:100%;border-radius:0;z-index:30;padding:26px}.extension-heading h2{font-size:21px}.extension-close{width:34px;height:34px;font-size:25px}.extension-intro{font-size:11px}.plugin-card p{font-size:11px}.plugin-card strong{font-size:13px}.architecture-note p{font-size:11px}.core-card strong{font-size:12px}.side-panel-slots>section,.side-panel-slots>div{font-size:12px}.auth-dialog[open]{display:block;width:390px;max-height:calc(100dvh - 24px);max-width:calc(100vw - 24px)}.auth-story{display:none}.auth-content{padding:35px 28px 28px}.auth-content>h1{font-size:25px}.auth-content>.eyebrow:before{content:"◈ ";color:var(--primary)}.auth-footnote{font-size:10px}.auth-subtitle{font-size:12px}.auth-dialog input{font-size:13px!important}.auth-dialog label{font-size:12px!important}.segmented-control>button{font-size:12px}.new-dialog{padding:23px;max-width:calc(100vw - 24px)}.toast-container{bottom:30px}.sidebar-menu{left:auto;right:20px;top:70px}.message-quote span{max-width:220px}.chat-error{font-size:10px;padding:8px 14px}.chat-empty h2{font-size:18px}}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
.plugin-reactions{display:flex;gap:4px;flex-wrap:wrap}.plugin-search form{display:flex;flex-direction:column;gap:9px}.plugin-search label{color:#8096a3;font-size:10px}.plugin-search input{font-size:11px;padding:9px;margin-top:7px}.plugin-search form>button{align-self:flex-end}.plugin-search [role=status]{color:#92a3af;font-size:9px;margin-top:11px;line-height:1.8}.plugin-search-results{list-style:none;margin:10px 0 0;padding:0;max-height:300px;overflow-y:auto}.plugin-search-results li{padding:11px 0;border-top:1px solid var(--line)}.plugin-search-results strong{font-size:10px;color:#5f8394}.plugin-search-results small{font-size:8px;color:#a2b0ba}.plugin-search-results p{font-size:10px;color:#738996;line-height:1.8;margin-top:5px}
.message-body{font-size:14px;line-height:1.7}.sender-name{font-size:11px}.conversation-line strong{font-size:13px}.conversation-preview{font-size:11px}.chat-title h2{font-size:15px}.chat-title p{font-size:11px}.composer textarea{font-size:14px}.plugin-card p{font-size:11px}.plugin-card strong{font-size:12px}.auth-dialog input{font-size:13px!important}.auth-subtitle{font-size:12px}.plugin-search label{font-size:11px}.plugin-search [role=status]{font-size:10px}.plugin-search-results p{font-size:11px}.plugin-search-results small{font-size:9px}.conversation-list-row:nth-child(3n+2) .avatar{background:#ecebf5;color:#7b76a0}.conversation-list-row:nth-child(3n) .avatar{background:#f4eee4;color:#9a8364}.extension-panel:has(.conversation-details:not([hidden])) .architecture-note{display:none}.extension-panel:has(.conversation-details:not([hidden])) .core-card{display:none}.extension-panel:has(.conversation-details:not([hidden])) .extension-intro{display:none}.plugin-inventory{margin-top:20px}.plugin-inventory summary{display:flex;justify-content:space-between;gap:10px;cursor:pointer;color:#8298a5;font-size:10px;list-style:none;padding:10px 0}.plugin-inventory summary:before{content:'›';transition:transform .15s;display:inline-block;color:#a1b5bf}.plugin-inventory[open] summary:before{transform:rotate(90deg)}.plugin-inventory summary>span:first-child{flex:1}.plugin-inventory summary::-webkit-details-marker{display:none}.plugin-inventory:not([open]){border-bottom:1px solid var(--line);padding-bottom:5px}.plugin-inventory .plugin-list{margin-top:8px}.plugin-inventory .plugin-card{padding:12px}.plugin-inventory .plugin-card p{font-size:10px}.extension-panel:has(.conversation-details:not([hidden])) .side-panel-slots{margin-top:20px}.extension-panel:has(.conversation-details:not([hidden])) .extension-heading h2{font-size:14px}.extension-panel:has(.conversation-details:not([hidden])) .extension-heading .eyebrow{display:none}@media(max-width:740px){.conversation-line strong{font-size:14px}.message-body{font-size:14px}.extension-panel:has(.conversation-details:not([hidden])) .extension-heading h2{font-size:18px}}@media(max-width:360px){.account-name{display:none}.brand small{font-size:6px}.header-status{gap:3px}.account-area{gap:3px}.app-header{gap:8px;padding:0 11px}}
.latest-messages-button{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;min-height:44px;max-width:130px;background:#17394def;color:white;padding:0 10px;border:1px solid #ffffff45;border-radius:8px;font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.latest-messages-button:hover{background:#087f86}.message-row{contain:layout style}.message-bubble{overflow-wrap:anywhere}@media(max-width:740px){.latest-messages-button{max-width:110px;padding:0 8px;font-size:11px}}
.pending-message .message-bubble{border-style:dashed}.pending-status{color:#678b95;font-size:10px}.pending-message .retry-pending-button{color:#a16942;background:#fff4e8;padding:3px 7px;border-radius:4px;font-size:10px}.pending-message .message-plugin-actions{display:none}

@media(max-width:740px){.composer textarea{font-size:16px}.auth-dialog input{font-size:16px!important}.field-label input,.user-search-results input{font-size:16px}.icon-button{width:44px;min-width:44px;height:44px}.reply-preview .icon-button{width:44px;min-width:44px;height:44px}}

/* A short visual viewport prioritizes reachable chat controls over chrome. */
.compact-viewport .app-shell{padding:0}.compact-viewport .app-header{display:none}.compact-viewport .workspace{display:block;position:relative;border:0;border-radius:0}.compact-viewport .conversation-panel{height:100%;border:0}.compact-viewport .panel-heading{padding:6px 12px;gap:8px}.compact-viewport .panel-heading h1{font-size:18px;margin-top:0}.compact-viewport .panel-heading .eyebrow,.compact-viewport .workspace-note{display:none}.compact-viewport .conversation-tools{padding:0 12px 6px}.compact-viewport .chat-panel{display:none;position:absolute;inset:0;height:100%}.compact-viewport .workspace.chat-open .chat-panel{display:flex}.compact-viewport .workspace.chat-open .conversation-panel{display:none}.compact-viewport .chat-heading{height:44px;min-height:44px;padding:0 8px;gap:8px}.compact-viewport .chat-heading .conversation-avatar{width:30px;height:30px}.compact-viewport .chat-title p{display:none}.compact-viewport .mobile-back{display:inline-flex;width:44px;min-width:44px;height:44px}.compact-viewport .message-view{min-height:0;padding:0 8px}.compact-viewport .composer{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:4px;padding:2px 8px calc(2px + env(safe-area-inset-bottom))}.compact-viewport .composer-tools,.compact-viewport .keyboard-hint{display:none}.compact-viewport .latest-messages-button{max-width:110px;padding:0 6px;font-size:10px}.compact-viewport .composer textarea{grid-column:1;font-size:16px;line-height:1.4;min-height:44px;max-height:80px;padding:6px 0}.compact-viewport .composer-bottom{grid-column:2}.compact-viewport .send-button{height:44px;min-width:44px;justify-content:center;padding:0 10px}.compact-viewport .reply-preview{grid-column:1/-1;margin:0;padding:0 6px;font-size:10px;line-height:1.2}.compact-viewport .reply-preview .icon-button{width:44px;min-width:44px;height:44px}

/* Native short layout viewports must enter the same compact geometry before
   the first layout. Keep these declarations identical to .compact-viewport
   above; that class also handles visualViewport-only keyboards and fallback.
   Wide normal chat needs at least 392px (header, borders, chrome, input and
   message padding), so <=391px also enters compact before its first layout.
   :root preserves the class prefix's specificity without requiring JavaScript. */
@media(max-height:299px), (min-width:741px) and (max-height:391px){
  :root .app-shell{padding:0}
  :root .app-header{display:none}
  :root .workspace{display:block;position:relative;border:0;border-radius:0}
  :root .conversation-panel{height:100%;border:0}
  :root .panel-heading{padding:6px 12px;gap:8px}
  :root .panel-heading h1{font-size:18px;margin-top:0}
  :root .panel-heading .eyebrow,:root .workspace-note{display:none}
  :root .conversation-tools{padding:0 12px 6px}
  :root .chat-panel{display:none;position:absolute;inset:0;height:100%}
  :root .workspace.chat-open .chat-panel{display:flex}
  :root .workspace.chat-open .conversation-panel{display:none}
  :root .chat-heading{height:44px;min-height:44px;padding:0 8px;gap:8px}
  :root .chat-heading .conversation-avatar{width:30px;height:30px}
  :root .chat-title p{display:none}
  :root .mobile-back{display:inline-flex;width:44px;min-width:44px;height:44px}
  :root .message-view{min-height:0;padding:0 8px}
  :root .composer{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:4px;padding:2px 8px calc(2px + env(safe-area-inset-bottom))}
  :root .composer-tools,:root .keyboard-hint{display:none}
  :root .latest-messages-button{max-width:110px;padding:0 6px;font-size:10px}
  :root .composer textarea{grid-column:1;font-size:16px;line-height:1.4;min-height:44px;max-height:80px;padding:6px 0}
  :root .composer-bottom{grid-column:2}
  :root .send-button{height:44px;min-width:44px;justify-content:center;padding:0 10px}
  :root .reply-preview{grid-column:1/-1;margin:0;padding:0 6px;font-size:10px;line-height:1.2}
  :root .reply-preview .icon-button{width:44px;min-width:44px;height:44px}
}

/* Keep native bulk-edit layout local; preserve intrinsic composer sizing. */
.composer{contain:layout style}

/* The flex-sized scrollport keeps retained-message layout inside its bounds. */
.message-view{contain:strict;overflow-anchor:none}

/* Bound conversation-list layout to its assigned grid/flex panel. */
.conversation-panel{contain:strict}

/* Prefer one CJK-capable input face across mixed Chinese/Latin draft runs. */
.composer textarea{font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",system-ui,sans-serif;font-kerning:none}

/* Startup only; the loader releases this within 150ms or on interaction. */
.boot-preparing .workspace,.boot-preparing .header-status,.boot-preparing .account-area,.boot-preparing .brand strong,.boot-preparing .brand small,.boot-preparing dialog[open]{display:none!important}
.conversation-list-row{content-visibility:auto;contain-intrinsic-size:auto 68px}

/* Pagination stays separate from the filter; its controls remain touchable. */
#conversationPagination{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;flex-shrink:0;padding:8px 14px;border-top:1px solid var(--line)}
#conversationPagination button{min-height:44px;padding:8px;font-size:12px;white-space:nowrap;background:var(--primary-soft)}
#conversationPageStatus{grid-column:1/-1;font-size:11px;line-height:1.5;color:var(--muted);overflow-wrap:anywhere}
#conversationPageStatus:empty{display:none}

/* Member and candidate pages retain bounded data and virtual rows. */
.member-dialog{width:min(560px,calc(100vw - 24px));max-height:calc(100dvh - 24px);padding:24px;border:1px solid #dce5eb;border-radius:18px;overflow:auto}.directory-filters{display:flex;gap:12px}.directory-filters label{display:flex;flex:1;min-width:0;flex-direction:column;gap:6px}.directory-filters input,.directory-filters select{width:100%;min-height:44px;border:1px solid #dce5eb;border-radius:8px;padding:8px;background:#fff}.member-row{display:grid;grid-template-columns:minmax(0,1fr) 50px 50px;align-items:center;gap:12px;border-bottom:1px solid #edf1f4;padding:0 8px}.member-row strong{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.member-row span{font-size:12px;color:#74818a}.member-row .member-online{color:#187650}.directory-navigation{display:flex;justify-content:flex-end;gap:8px;flex-wrap:wrap;margin-top:12px}.directory-navigation button{min-height:44px}.selected-users.virtual-selection{display:block;position:relative;max-height:160px;width:100%;overflow:auto}.virtual-selection .selected-user{display:flex;justify-content:space-between;box-sizing:border-box;border-radius:6px;white-space:nowrap;overflow:hidden}.virtual-selection .selected-user>span{overflow:hidden;text-overflow:ellipsis}

/* A privacy boundary, not a timed overlay. Visibility preserves reading layout. */
:root[data-session-pending] body > :not(#sessionGuard),
:root[data-session-pending] body > :not(#sessionGuard) * { visibility: hidden !important; pointer-events: none !important; }
:root[data-session-pending] dialog::backdrop { visibility: hidden !important; }
.session-guard { position: fixed; inset: 0; z-index: 2147483647; display: grid; place-items: center; padding: 24px; background: #f4f7fa; color: #17394d; text-align: center; }
.session-guard[hidden] { display: none; }
.session-guard h1 { font-size: 22px; }
.session-guard p { line-height: 1.7; }

/* A pointer click is not keyboard focus; keep the keyboard indicator distinct. */
:where(button,a,summary):focus:not(:focus-visible){outline:none}