:root{--ink:#163d35;--muted:#66716c;--line:#dce3df;--paper:#fff;--gold:#ad8742;--soft:#f3f6f4;--shadow:0 12px 38px #102a2821;font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;color:#1c302a;background:#eef2ef;font-size:14px;letter-spacing:0}
*{box-sizing:border-box}body{margin:0;overflow:hidden}button,input,textarea,select{font:inherit}button{cursor:pointer}button,a,input,textarea,select{outline-offset:4px}button:focus-visible,a:focus-visible{outline:3px solid #38987a}button{border:1px solid var(--line);background:var(--paper);color:var(--ink);border-radius:6px;min-height:40px;padding:9px 13px;display:inline-flex;gap:8px;align-items:center;justify-content:center;transition:background .16s,border-color .16s}button:hover{background:#eaf1ed;border-color:#8ba697}button:disabled{cursor:not-allowed;opacity:.5}button svg{flex:none;width:19px;height:19px}button.primary{background:var(--ink);color:white;border-color:var(--ink)}button.primary:hover{background:#28614f}.icon-btn{width:40px;height:40px;padding:9px;flex:none}.icon-btn[aria-pressed=true]{background:var(--ink);color:#fff;border-color:var(--ink)}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.topbar{height:70px;display:flex;gap:28px;align-items:center;padding:0 24px;background:#fff;border-bottom:1px solid var(--line)}.brand{padding:0;border:0;background:transparent!important;gap:12px;justify-content:flex-start;text-align:left}.brand>svg{width:30px;height:30px;color:var(--gold)}.brand span{font-weight:700;font-size:19px;line-height:1.4}.brand small{display:block;font-weight:400;font-size:11px;color:var(--muted);margin-top:2px}.location{display:flex;align-items:center;gap:9px;border-left:1px solid var(--line);padding-left:25px;font-size:13px}.location-dot{width:6px;height:6px;border-radius:50%;background:var(--gold)}.top-actions{margin-left:auto;display:flex;gap:7px}.top-actions .icon-btn{border:0;background:transparent}.top-actions .icon-btn:hover{background:var(--soft)}#workspace{height:calc(100dvh - 166px);display:flex;min-height:250px}#stage{position:relative;min-width:0;flex:1;overflow:hidden;background:#282d29;touch-action:none}#canvas-host,#canvas-host canvas,#hotspots{position:absolute;inset:0;width:100%;height:100%}#canvas-host canvas{display:block;cursor:grab}#canvas-host canvas:active{cursor:grabbing}#hotspots{pointer-events:none;overflow:hidden}.hotspot{position:absolute;width:36px;height:36px;min-height:36px;padding:0;border-radius:50%;pointer-events:auto;background:#ffffffeb;border:2px solid #b28a42;box-shadow:0 3px 14px #0b28284a;color:#224b3d;transform:translate(-50%,-50%);font-size:12px}.hotspot svg{width:17px;height:17px}.hotspot .tip{display:none;position:absolute;left:50%;bottom:42px;transform:translateX(-50%);background:#173c32;color:white;padding:7px 10px;border-radius:4px;white-space:nowrap}.hotspot:hover .tip,.hotspot:focus-visible .tip{display:block}.hotspot.visited{background:#dff0e6}.scene-top{position:absolute;left:20px;top:18px;right:20px;display:flex;justify-content:space-between;pointer-events:none}.room-count,.save-state{padding:7px 11px;color:#fff;background:#163d35dd;font-size:11px;border:1px solid #ffffff30;border-radius:4px}.save-state{background:#ffffffdf;color:#385145}.view-tools{position:absolute;left:20px;top:67px;display:flex;flex-direction:column;gap:5px}.view-tools .icon-btn{background:#fffffff0;box-shadow:0 2px 8px #0001}.view-tools .icon-btn[aria-pressed=true]{background:#173f35;color:#fff}.room-task{position:absolute;left:50%;bottom:32px;transform:translateX(-50%);max-width:calc(100% - 130px);display:flex;align-items:center;gap:18px;background:#fffffff5;border:1px solid #fff;border-radius:7px;padding:10px 10px 10px 18px;box-shadow:var(--shadow);white-space:nowrap}.room-task>span{font-size:13px;color:#234436}.room-task button{white-space:nowrap}.scene-credit{position:absolute;bottom:9px;right:15px;font-size:10px;color:#fff;text-shadow:0 1px 4px #000;background:#102c2666;padding:2px 5px}#loading{position:absolute;inset:0;background:#f2f5f0;display:flex;align-items:center;justify-content:center;gap:13px;z-index:5}#loading[hidden]{display:none}.loader{width:22px;height:22px;border:2px solid #b8c6bd;border-top-color:#22513c;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.bottom-bar{height:96px;background:#fff;display:flex;align-items:center;padding:12px 24px;gap:18px;border-top:1px solid var(--line)}#room-nav{display:flex;flex:1;gap:10px;min-width:0}#room-nav button{flex:1;max-width:228px;min-width:0;justify-content:flex-start;border:1px solid transparent;padding:7px;gap:10px;background:#f5f7f5;height:68px}#room-nav button.active{border-color:#a7894a;background:#eaf0e9;box-shadow:inset 0 -2px #a7894a}#room-nav img{width:72px;height:46px;object-fit:cover;border-radius:3px}#room-nav strong{font-size:13px;white-space:nowrap}#room-nav small{display:block;color:var(--muted);font-size:10px;margin-top:5px}.course-button{height:62px;padding:10px 16px;background:var(--ink);color:#fff;flex:none}.course-button:hover{background:#295a48}.course-button small{display:block;font-size:11px;opacity:.7;margin-top:4px}#panel{width:390px;flex:none;background:#fff;border-left:1px solid var(--line);overflow:auto;overscroll-behavior:contain}#panel[hidden]{display:none}.panel-head{position:sticky;top:0;display:flex;align-items:center;justify-content:space-between;background:#fff;z-index:3;padding:13px 20px;border-bottom:1px solid var(--line);font-size:11px;color:var(--muted)}.panel-head .icon-btn{border:0;width:32px;height:32px;min-height:32px}#panel-body{padding:22px 22px 28px}h1,h2,h3,p{margin-top:0}h2{font-size:24px;line-height:1.4;margin-bottom:8px;color:var(--ink)}h3{font-size:15px;line-height:1.5;margin-bottom:10px}p{line-height:1.8;font-size:13px;margin-bottom:16px}.muted{color:var(--muted);font-size:12px}.eyebrow{font-size:10px;color:#8b713d}.tag{display:inline-flex;font-size:11px;gap:5px;align-items:center;padding:4px 8px;background:#edf3ee;color:#3a6350;border-radius:3px;margin-bottom:10px}.tag svg{width:13px;height:13px}.detail-image{width:100%;height:180px;object-fit:contain;display:block;background:#fff;margin:15px 0}.exhibit-word{font-family:Georgia,serif;font-size:12px;color:#8a7760;margin-bottom:16px}.detail-spec{display:grid;grid-template-columns:64px 1fr;gap:10px 12px;font-size:13px;padding:16px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);line-height:1.8;margin:16px 0}.detail-spec dt{color:var(--muted)}.detail-spec dd{margin:0}.button-row{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 20px}.button-row>button{flex:1}.divider{height:1px;background:var(--line);margin:24px 0}.note{background:#f1f5f0;border-left:3px solid #8fa68e;padding:12px 14px;font-size:12px;line-height:1.7;margin:16px 0}.facts{padding:0;list-style:none}.facts li{padding:10px 0;border-bottom:1px solid var(--line);font-size:13px;line-height:1.8}label.field{display:block;margin:16px 0 8px;font-size:12px;font-weight:600;color:#3c5146}.field small{font-weight:400;color:var(--muted)}input[type=text],textarea,select,input[type=number]{width:100%;border:1px solid #cdd9d1;background:#fbfcfb;border-radius:5px;padding:10px 11px;line-height:1.6;color:#203b30}textarea{resize:vertical;min-height:85px;font-size:13px}input[type=checkbox],input[type=radio],input[type=range]{accent-color:#29684f}input[type=range]{min-width:60px}input[type=file]{width:100%;font-size:12px}fieldset{border:0;margin:0;padding:0}.segmented{display:flex;gap:0;margin:14px 0}.segmented button{flex:1;min-width:0;border-radius:0;font-size:12px;padding:8px}.segmented button:first-child{border-radius:5px 0 0 5px}.segmented button:last-child{border-radius:0 5px 5px 0}.segmented button.selected{background:var(--ink);color:#fff;border-color:var(--ink)}.section-title{display:flex;justify-content:space-between;align-items:center}.small{font-size:11px}.sheet-image{display:block;width:100%;height:auto;margin:14px 0}.gallery-list{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:16px 0}.gallery-list button{justify-content:flex-start;padding:10px;font-size:12px}.gallery-list button span{margin-left:auto;color:#6b8c74;font-size:11px}.compare-images{display:grid;grid-template-columns:1fr 1fr;gap:12px}.compare-images img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:4px}.compare-images label{font-size:12px;display:block;margin-bottom:7px}.compare-images select{font-size:12px}.course-step{width:100%;display:flex;text-align:left;align-items:center;justify-content:flex-start;gap:14px;background:transparent;border:0;border-bottom:1px solid var(--line);border-radius:0;padding:15px 0}.course-step b{width:30px;height:30px;display:grid;place-items:center;border:1px solid #cbd7ce;border-radius:50%;font-size:11px}.course-step.done b{background:#e4efe8;color:#295d42}.course-step strong{display:block;font-size:13px}.course-step small{display:block;font-size:11px;color:var(--muted);margin-top:4px}.course-step svg{margin-left:auto}.checks{display:flex;gap:8px;align-items:flex-start;margin:10px 0;font-size:12px;line-height:1.6}.checks input{margin-top:3px}.numeric-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.numeric-grid label{font-size:12px}.numeric-grid input{margin-top:6px}.total{border-block:1px solid var(--line);padding:15px 0;display:flex;justify-content:space-between;align-items:center;margin:20px 0}.total strong{font-family:Georgia,serif;font-size:36px;font-weight:400}.layer-row{display:flex;align-items:center;gap:12px;padding:13px 0;border-bottom:1px solid var(--line)}.layer-row input{width:18px;height:18px}.layer-row span{font-size:13px;flex:1}.layer-dot{width:12px;height:12px;border-radius:50%;background:#d6dfd7;transition:background .1s}.layer-row.active .layer-dot{background:#2b7254}.beat .layer-row.active .layer-dot{background:#d7b467;box-shadow:0 0 0 5px #d7b46726}.score-table{border-collapse:collapse;width:100%;font-size:12px}.score-table td,.score-table th{border-bottom:1px solid var(--line);padding:10px 5px;text-align:left;vertical-align:top}.feedback{font-size:12px;line-height:1.8;padding-left:18px}.error{color:#a53d32}.status-good{color:#2c7953}.media-screen{position:relative;width:100%;aspect-ratio:16/9;background:#111;overflow:hidden;border-radius:5px}.media-screen video{display:block;width:100%;height:100%;object-fit:contain}.media-screen #audio-cover{position:absolute;inset:0;background:#183c33;display:flex;align-items:center;justify-content:center;flex-direction:column;color:#fff}.media-screen #audio-cover svg{width:45px;height:45px;color:#d3b274;margin-bottom:22px}.media-screen #audio-cover h3{font-size:24px;color:#fff}.media-screen #audio-cover p{color:#d0ded6}.media-screen.revealed #audio-cover{display:none}dialog{border:1px solid #d8e0da;border-radius:8px;padding:22px;width:min(920px,calc(100% - 32px));max-height:94dvh;box-shadow:0 20px 100px #0005;overflow:auto}dialog::backdrop{background:#0e241cd9;backdrop-filter:blur(7px)}.dialog-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.dialog-head h2{font-size:20px;margin:5px 0 0}.player-controls{display:flex;align-items:center;gap:10px;margin-top:14px}.seek-wrap{flex:1;min-width:0}.seek-wrap input{width:100%}#media-time{font-size:11px;white-space:nowrap;font-variant-numeric:tabular-nums}.media-options{display:flex;flex-wrap:wrap;gap:18px;align-items:center;margin:15px 0}.media-options label{display:flex;align-items:center;gap:6px;font-size:12px}.media-options input[type=range]{width:90px}#media-note{margin-bottom:0}#toast{position:fixed;left:50%;bottom:110px;transform:translateX(-50%);padding:13px 20px;max-width:calc(100% - 32px);border-radius:6px;box-shadow:var(--shadow);background:#133c31;color:white;z-index:30;font-size:13px;line-height:1.6}#toast[hidden]{display:none}.cue-row{display:grid;grid-template-columns:1fr 70px 70px;gap:8px;align-items:center;margin-bottom:8px;font-size:12px}.cue-row input{padding:6px;font-size:12px}.intro-cover{background:#193e34!important}.source-link{color:#3b7860}.artifact-complete{display:flex;align-items:center;gap:8px;font-size:12px;color:#48725b}.artifact-complete svg{width:16px;height:16px}.reflect{border-left:3px solid #c5a25c;background:#f8f6ef;padding:12px;margin:16px 0}.reflect p{margin:0}.inline-check{display:flex;gap:8px;align-items:center;font-size:12px;margin:15px 0}
.hotspot[hidden]{display:none!important}.panorama-compass{position:absolute;right:20px;bottom:35px;display:flex;gap:8px;align-items:center;background:#173c32e8;color:#fff;border:1px solid #d5b77666;border-radius:5px;padding:8px 11px;pointer-events:none;font-size:11px}.panorama-compass span{color:#e3c688;border-right:1px solid #ffffff35;padding-right:8px}.panorama-compass b{min-width:30px;font-weight:500;font-variant-numeric:tabular-nums}
#mobile-exhibits{display:none}
@media(min-width:1800px){#panel{width:440px}.topbar{padding-inline:36px}.bottom-bar{padding-inline:36px}#room-nav button{max-width:270px}#room-nav img{width:90px;height:50px}}
@media(max-width:1100px){#room-nav img{width:50px;height:38px}#room-nav button{gap:7px}.topbar{padding:0 16px;gap:16px}.bottom-bar{padding:10px 15px;gap:10px}#panel{width:350px}.room-task>span{display:none}.room-task{padding:6px}.location{padding-left:16px}}
@media(max-width:760px){body{overflow:hidden}.topbar{height:62px;padding:0 12px;gap:8px}.brand span{font-size:15px}.brand>svg{width:24px;height:24px}.brand small{font-size:9px}.top-actions{gap:1px}.top-actions .icon-btn{width:33px;height:38px;padding:7px}.location{display:none}#workspace{height:calc(100dvh - 148px);min-height:180px}#panel{position:absolute;z-index:12;right:0;top:62px;bottom:86px;width:min(390px,100%);box-shadow:-10px 0 40px #0002}.panel-head{padding:9px 17px}#panel-body{padding:18px}.bottom-bar{height:86px;padding:7px;gap:5px}#room-nav{gap:3px}#room-nav button{height:68px;flex-direction:column;gap:4px;padding:4px;justify-content:center}#room-nav img{width:100%;max-width:70px;height:30px}#room-nav strong{font-size:11px}#room-nav small{display:none}.course-button{width:45px;height:68px;padding:6px;flex-direction:column;gap:3px}.course-button>span{font-size:10px}.course-button small{display:none}.scene-top{left:10px;right:10px;top:10px}.room-count,.save-state{padding:5px 7px;font-size:10px}.view-tools{left:10px;top:46px;gap:4px}.view-tools .icon-btn{width:34px;height:34px;min-height:34px;padding:7px}.room-task{bottom:28px;max-width:calc(100% - 85px)}.room-task button{font-size:12px;min-height:36px;padding:7px 12px}.scene-credit{font-size:8px;right:7px;bottom:6px}.hotspot{width:32px;height:32px;min-height:32px}.hotspot:before{content:"";position:absolute;inset:-6px}.hotspot .tip{font-size:11px}.player-controls{gap:5px}.player-controls .icon-btn{width:32px;height:32px;min-height:32px;padding:6px}dialog{padding:14px;width:calc(100% - 20px)}#media-time{font-size:10px}.dialog-head h2{font-size:17px}.media-screen #audio-cover h3{font-size:18px}.media-screen #audio-cover svg{width:28px;height:28px;margin-bottom:12px}.media-screen #audio-cover p{font-size:11px}.media-options{gap:10px}#toast{bottom:98px}h2{font-size:22px}}
@media(prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition:none!important}}
@media(max-width:760px){#workspace{display:block;overflow-y:auto}#stage{height:310px;width:100%;min-height:0;flex:none}.view-tools{left:10px;right:auto;top:auto;bottom:12px;flex-direction:row}.scene-top{top:8px}.room-task{display:none}.scene-credit{bottom:4px;font-size:7px;max-width:135px}.save-state{font-size:9px}#mobile-exhibits{display:block;background:#fff;padding:19px 16px 25px;min-height:260px}#mobile-exhibits .mobile-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:15px}#mobile-exhibits h2{font-size:20px;margin:0}#mobile-exhibits p{font-size:12px;color:var(--muted);margin:0 0 10px}#mobile-exhibits .mobile-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}#mobile-exhibits .mobile-grid button{border:0;border-bottom:1px solid var(--line);border-radius:0;justify-content:space-between;min-height:48px;font-size:13px;padding-inline:2px;background:transparent}.mobile-grid svg{width:15px;height:15px}}
@media(max-width:760px){.panorama-compass{right:10px;bottom:18px;padding:5px 7px;font-size:10px;gap:5px}.scene-credit{max-width:none;font-size:7px}}