:root{font-family:"Microsoft YaHei",system-ui,sans-serif;color:#dce9ee;background:#101922;font-synthesis:none}*{box-sizing:border-box}body{margin:0}main{max-width:1280px;margin:auto;padding:26px}header{display:flex;gap:20px;align-items:center;justify-content:space-between;border-bottom:1px solid #314453;padding-bottom:18px}a{color:#89dec2;text-decoration:none}header>a{font-weight:700;font-size:24px}h1{font-size:29px;margin:28px 0 12px}h2{font-size:18px;margin-top:0}p{font-size:13px;line-height:1.8;color:#a9becb}aside{padding:13px 18px;background:#29291f;border:1px solid #67603e;color:#d6ca9e;font-size:12px;line-height:1.8;border-radius:7px;margin:16px 0}.panel{background:#172530;border:1px solid #344a58;border-radius:9px;padding:23px;margin:20px 0}.columns{display:grid;grid-template-columns:1fr 1fr;gap:20px}.columns .panel{margin:10px 0}label{display:block;font-size:12px;color:#b4c6ce;margin:16px 0 7px}select{padding:10px;color:#dce9ee;background:#0f1b25;border:1px solid #476171;border-radius:5px;max-width:100%;min-width:160px}button,.venues a{font:inherit;font-size:13px;background:#8ad8b6;color:#103629;border:0;border-radius:5px;padding:10px 15px;cursor:pointer;display:inline-block}button:disabled{opacity:.4;cursor:default}.venues{display:flex;flex-wrap:wrap;gap:12px}.hint{font-size:12px}.error{color:#efafa6}.screens{display:grid;gap:10px}.screen-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px;background:#10202b;border-radius:5px;font-size:12px}.screen-row span{line-height:1.9}.screen-row .good{color:#8ee1b4}.screen-row .waiting{color:#e1c17c}.hidden{display:none!important}.wall-page{max-width:none;padding:20px}.wall-toolbar{display:flex;align-items:center;gap:12px;margin:16px 0;flex-wrap:wrap}.wall-toolbar span{font-size:12px;color:#9eb9c9}.stage{height:min(54vh,620px);background:#050b10;border:2px solid #72cbb0;border-radius:7px;display:flex;align-items:center;justify-content:center;overflow:hidden}.stage video{width:100%;height:100%;object-fit:contain}.signal{font-size:20px;color:#a7bdc8}.wall-meta{display:flex;justify-content:space-between;gap:12px;padding:12px 0;font-size:12px}.tiles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.tile{background:#172936;border:1px solid #425e70;border-radius:6px;overflow:hidden;min-width:0}.tile.selected{border:2px solid #83e2b9}.tile video{display:block;width:100%;aspect-ratio:16/9;object-fit:contain;background:#061018}.tile b{font-size:12px;display:block;padding:7px 10px}.grid-layout .stage{display:none}.program-layout .tiles{display:none}.grid-layout .tiles{grid-template-columns:repeat(3,minmax(0,1fr))}@media(max-width:820px){.columns{grid-template-columns:1fr}.screen-row{flex-wrap:wrap}.tiles,.grid-layout .tiles{grid-template-columns:repeat(2,minmax(0,1fr))}.wall-meta{flex-wrap:wrap}main{padding:18px}}
.stage{position:relative}.stage>.signal{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#050b10;z-index:2}

.venues{display:grid;gap:12px}.venue-links{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.venue-links b{font-size:12px;min-width:76px}.venue-links a{font-size:11px;padding:8px 10px}.venue-links a:last-child{background:#28495a;color:#c4e7f0}
.audio-tools{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.audio-tools label{display:flex;align-items:center;gap:7px;margin:0}.audio-tools input{margin:0}
body.audience .wall-page{height:100dvh;max-width:none;padding:10px;display:grid;grid-template-rows:minmax(0,2fr) auto minmax(0,1fr);gap:8px}
body.audience header,body.audience .wall-toolbar,body.audience aside,body.audience #error{display:none}
body.audience .stage{height:auto;min-height:0;grid-row:1}
body.audience .wall-meta{grid-row:2;padding:0;align-items:center;font-size:14px}
body.audience .tiles{grid-row:3;grid-template-columns:repeat(5,minmax(0,1fr));grid-auto-rows:minmax(0,1fr);min-height:0;gap:8px}
body.audience .tile{display:flex;flex-direction:column;min-height:0}
body.audience .tile video{height:0;min-height:0;flex:1;aspect-ratio:auto}
body.audience .tile b{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex-shrink:0}
body.audience.grid-layout .wall-page{grid-template-rows:auto minmax(0,1fr)}
body.audience.grid-layout .wall-meta{grid-row:1}
body.audience.grid-layout .tiles{grid-row:2;grid-template-columns:repeat(4,minmax(0,1fr))}
body.audience.program-layout .wall-page{grid-template-rows:minmax(0,1fr) auto}
@media(max-width:820px){body.audience .tiles,body.audience.grid-layout .tiles{grid-template-columns:repeat(2,minmax(0,1fr))}body.audience .wall-meta{font-size:12px}}

.collaboration-tools{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.collaboration-tools a{padding:10px 12px;border:1px solid #476171;border-radius:5px}.collaboration-tools input{flex:1;min-width:180px;padding:11px;color:#dce9ee;background:#0f1b25;border:1px solid #476171;border-radius:5px;font:inherit}body.audience .collaboration-panel,body.audience #share-status{display:none}

body.audience #programme-source,body.audience #programme-status{display:none}
body.audience .lifecycle-note{display:none}
body.audience .protection-panel,body.audience .conference-audio-panel{display:none}
.columns .venue-activity{grid-template-columns:repeat(2,minmax(0,1fr))}.venue-launcher summary{cursor:pointer;font-size:18px;font-weight:600}.venue-launcher[open] summary{margin-bottom:20px}
.columns .activity-card{padding:10px;gap:5px}.columns .activity-card b{line-height:1.4}
.venue-activity{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}.activity-card{display:flex;flex-direction:column;gap:9px;padding:14px;background:#10202b;border:1px solid #344a58;border-radius:6px;font-size:12px;min-width:0}.activity-card b{font-size:13px;line-height:1.7}.activity-card span{color:#b4c6ce;line-height:1.6}.activity-card[data-voice="speaking"]{border-color:#8ad8b6}.activity-card[data-voice="speaking"] span:last-child{color:#8ee1b4}.activity-card[data-video="duplicate"]{border-color:#dfad68}.activity-card[data-video="duplicate"] span{color:#e1c17c}#configuration-status{min-height:24px}#candidate-timing{color:#a5dfcb;min-height:24px}@media(max-width:1000px){.venue-activity{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:620px){.venue-activity{grid-template-columns:repeat(2,minmax(0,1fr))}}
.screen-row{display:grid;grid-template-columns:minmax(220px,1fr) 180px 270px}.screen-row select{width:100%;min-height:44px;min-width:0}.screen-row .screen-source[hidden]{display:none}@media(max-width:1000px){.screen-row{grid-template-columns:1fr 1fr}.screen-row span{grid-column:1/-1}}@media(max-width:560px){.screen-row{grid-template-columns:1fr}}

body.audience #media-health,body.audience #retry-play,body.audience .audio-lab{display:none}#retry-play[hidden]{display:none}#retry-play{min-height:44px}
.tile small{display:block;padding:0 10px 7px;color:#8ee1b4;font-size:11px;flex-shrink:0}.tile.signal-stale small{color:#e1c17c}.tile.signal-stale{background:#09121a}#grid-proof{color:#b4d7c7}

.collaboration-recipients{display:flex;flex-wrap:wrap;gap:12px}.collaboration-recipients label{display:flex;align-items:center;gap:6px}#collaboration-invitations fieldset{margin:12px 0}#collaboration-inbox li,#collaboration-sent li{margin:8px 0}
.screen-overview{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}.screen-card{display:flex;flex-direction:column;gap:10px;background:#10202b;border:1px solid #344a58;border-radius:7px;padding:16px;min-width:0;font-size:12px;line-height:1.7}.screen-card b{font-size:15px;color:#edf6f8}.screen-card span{color:#b4c6ce}.screen-card a{margin-top:auto;padding-top:8px;min-height:44px}.screen-card[data-state="ready"]{border-color:#68b995}.screen-card[data-state="waiting"]{border-color:#d5a85c}.screen-card[data-state="stale"]{opacity:.65}.screen-row[hidden]{display:none}#screen-receipts{scroll-margin-top:18px}@media(max-width:1100px){.screen-overview{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:700px){.screen-overview{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:420px){.screen-overview{grid-template-columns:1fr}}
.admissions-panel[hidden]{display:none}.admission-tools{display:flex;gap:12px;align-items:end;flex-wrap:wrap}.admission-tools label{margin:0;align-self:center}.admission-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px;background:#10202b;border-radius:6px;font-size:12px}.admission-row button{min-height:44px}#admission-link{min-height:44px}@media(max-width:600px){.admission-tools{display:grid;grid-template-columns:1fr}.admission-row{flex-wrap:wrap}}
body.audience #audio-transport-status{display:none}

body.audience #video-transport-status{display:none}
.audio-device-controls{display:grid;grid-template-columns:auto minmax(160px,1fr) auto minmax(160px,1fr) auto;gap:12px;align-items:center}.audio-device-controls label{margin:0}.audio-device-controls select{width:100%;min-width:0}.audio-device-controls button{min-height:44px}@media(max-width:1000px){.audio-device-controls{grid-template-columns:auto minmax(160px,1fr)}.audio-device-controls button{grid-column:1/-1;justify-self:start}}@media(max-width:520px){.audio-device-controls{grid-template-columns:minmax(0,1fr)}}

/* Compact utility pages; live stage and audience modes retain their geometry. */
body:not(.audience) main{padding:18px;max-width:1440px;margin:auto}body:not(.audience)>header,body:not(.audience) main>header{gap:12px;padding-bottom:12px;margin-bottom:12px}h1{font-size:23px;line-height:1.4;margin:16px 0 12px}h2{font-size:16px}h3{font-size:14px}p{font-size:12px;line-height:1.6}.intro{padding:12px 0}.panel,.control-card,.scene-card{padding:14px;border-radius:12px}.grid,.columns,.workspace{gap:12px}.section-title,.section-heading{margin-bottom:12px}button,.join,.secondary{font-size:13px;border-radius:8px;min-height:38px;padding:8px 12px}select,input{font-size:13px;min-height:38px;border-radius:7px;max-width:100%;min-width:0}label{font-size:12px;margin-top:12px}.ui-reference{border:1px solid #293c4d;border-radius:9px;background:#111d2a;padding:10px 12px;margin:12px 0;color:#91a4b8;font-size:12px}.ui-reference summary{cursor:pointer;color:#acc7d4;line-height:1.6}.ui-reference p{font-size:12px;line-height:1.6}p:empty,[role=status]:empty,[role=alert]:empty{display:none}.error,[role=alert]{overflow-wrap:anywhere}footer{padding:16px 0;font-size:11px}.status-row{margin:14px 0}.controls{gap:8px}.wall-toolbar{gap:8px;margin:10px 0}.screens,.screen-overview{gap:8px}.screen-row{padding:10px}.picture,.details{border-radius:12px}.notice,body:not(.audience) main>aside{padding:10px 12px;font-size:12px;line-height:1.6}button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,a:focus-visible{outline:2px solid #79dbc4;outline-offset:3px}@media(max-width:760px){body:not(.audience) main{padding:12px}h1{font-size:21px}.columns,.grid{grid-template-columns:1fr}.wall-toolbar{flex-wrap:wrap}.ui-reference{padding:9px}.screen-row{flex-wrap:wrap}}@media(pointer:coarse){button,.join,.secondary,select,input{min-height:44px}}
/* Shared utility typography and control states. */
:root{font-family:"Segoe UI","Microsoft YaHei UI","Microsoft YaHei",sans-serif;font-synthesis:none}button,input,select,textarea{font-family:inherit}button,.button{font-size:13px;font-weight:600;line-height:1.4;min-height:40px;border-radius:7px;padding:9px 13px;background:#192b38;border-color:#344a5c;color:#cbd9e4}button:hover:not(:disabled),.button:hover{background:#233a49;border-color:#638777;filter:none}button.primary,.button.primary{background:#72dfbd;border-color:#72dfbd;color:#103328}button.danger,.button.danger{background:#34252b;border-color:#795058;color:#ffc0bc}button:disabled{background:#15232e;border-color:#2b3e4d;color:#8095a6;opacity:1;cursor:not-allowed}label{font-size:13px;line-height:1.5}input,select,textarea{font-size:14px;line-height:1.5}.hint,.note,.ui-reference{font-size:12px;line-height:1.65;color:#9aafc0}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid #9aedd3;outline-offset:3px}@media(pointer:coarse){button,.button{min-height:44px}}