:root{
  --red:#ae3929;--red-deep:#681a16;--gold:#f6d48d;--ivory:#fff9ec;
  --ink:#2d1a13;--night:#100805;--glass:rgba(31,15,9,.83);--line:rgba(246,212,141,.6);
  --shadow:0 18px 60px rgba(0,0,0,.38)
}
*{box-sizing:border-box}
html,body{width:100%;height:100%;margin:0;overflow:hidden;background:#100805;color:#fff;font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC",sans-serif}
button,input,textarea{font:inherit}
button{cursor:pointer}
#pano,#fallbackPano,.vignette{position:fixed;inset:0;width:100%;height:100%}
#pano{z-index:0;touch-action:none}
#fallbackPano{z-index:0;display:none;background-size:cover;background-position:center}
.vignette{z-index:1;pointer-events:none;background:radial-gradient(circle at 50% 48%,transparent 42%,rgba(10,3,0,.47) 100%),linear-gradient(180deg,rgba(12,5,2,.28),transparent 28%,transparent 72%,rgba(10,4,2,.35))}
.vignette{background:radial-gradient(circle at 50% 47%,transparent 49%,rgba(10,3,0,.28) 100%),linear-gradient(180deg,rgba(12,5,2,.42),transparent 24%,transparent 75%,rgba(10,4,2,.43))}
.topbar{position:fixed;z-index:20;top:0;left:0;right:0;display:flex;align-items:flex-start;justify-content:space-between;padding:18px 24px;background:linear-gradient(180deg,rgba(15,7,3,.86),rgba(15,7,3,0));pointer-events:none}
.brand,.top-actions{display:flex;align-items:center;gap:12px;pointer-events:auto}
.brand-mark{display:grid;place-items:center;width:46px;height:54px;border:2px solid var(--gold);border-radius:12px 12px 18px 18px;background:linear-gradient(145deg,#dc6241,var(--red-deep));color:#fff1c8;font-family:KaiTi,STKaiti,serif;font-size:24px;box-shadow:0 0 24px rgba(243,197,104,.55),inset 0 0 16px rgba(255,232,166,.25)}
.brand small{color:#f0d39e;letter-spacing:.13em;font-size:12px}
.brand h1{margin:4px 0 0;font:400 clamp(19px,2.2vw,28px)/1.1 KaiTi,STKaiti,serif;letter-spacing:.08em;text-shadow:0 2px 12px #000}
.glass-btn,.view-tools button{border:1px solid var(--line);background:rgba(30,14,8,.72);color:#fff;border-radius:999px;min-height:42px;padding:9px 15px;backdrop-filter:blur(10px);box-shadow:0 5px 18px rgba(0,0,0,.18)}
.glass-btn:hover,.glass-btn:focus-visible,.view-tools button:hover{background:var(--red);outline:none}
.side-panel h3,.teacher-panel h3,.activity-overlay h2{font:400 30px/1.25 KaiTi,STKaiti,serif;margin:6px 0 12px;color:#fff7df}
.kicker{margin:0;color:var(--gold);font-size:13px;letter-spacing:.12em}
.task-card{margin-top:16px;padding:12px 14px;border-left:3px solid var(--gold);border-radius:7px;background:rgba(255,247,224,.1);line-height:1.55;color:#fff6df}
.task-card::before{content:"小任务";display:block;margin-bottom:4px;color:#f4ca78;font-size:12px;font-weight:700;letter-spacing:.1em}
.icon-close{border:0;background:transparent;color:inherit;width:42px;height:42px;font-size:27px;line-height:1}
.hotspots{position:fixed;z-index:9;inset:0;pointer-events:none}
.hotspot{position:absolute;display:flex;align-items:center;gap:8px;transform:translate(-50%,-50%);pointer-events:auto;border:1px solid var(--gold);border-radius:999px;padding:7px 13px 7px 8px;background:linear-gradient(135deg,rgba(112,38,25,.95),rgba(44,17,11,.93));color:#fff;box-shadow:0 0 0 5px rgba(243,197,104,.18),0 0 22px rgba(250,196,87,.28),0 7px 22px rgba(0,0,0,.3);white-space:nowrap;transition:transform .18s,background .18s,opacity .18s}
.hotspot:hover,.hotspot:focus-visible,.hotspot.selected{transform:translate(-50%,-50%) scale(1.06);background:var(--red);outline:none}
.hotspot .dot{display:grid;place-items:center;width:27px;height:27px;border-radius:50%;background:linear-gradient(145deg,#ffd980,#cc8428);color:#4b210c;font-weight:800}
.hotspot.go .dot{background:linear-gradient(145deg,#fff1c3,#f3c568)}
.hotspot.pairing{animation:pairPulse .7s ease-in-out 3}
@keyframes pairPulse{50%{box-shadow:0 0 0 15px rgba(243,197,104,.4),0 0 35px #fff0a0;background:#c94935}}
.side-panel,.teacher-panel{position:fixed;z-index:31;top:92px;right:24px;width:min(510px,calc(100vw - 48px));max-height:calc(100vh - 185px);overflow:auto;border:1px solid #e6c58d;border-radius:22px;background:linear-gradient(160deg,rgba(255,253,245,.98),rgba(255,243,218,.98));color:var(--ink);box-shadow:var(--shadow),inset 0 1px #fff;transform:translateX(calc(100% + 55px));opacity:0;transition:.3s}
.side-panel.open,.teacher-panel.open{transform:none;opacity:1}
.panel-head{position:sticky;z-index:2;top:0;display:flex;align-items:flex-start;justify-content:space-between;padding:20px 22px 14px;border-bottom:1px solid rgba(125,76,41,.16);background:rgba(255,250,239,.96);backdrop-filter:blur(12px)}
.panel-head h3{margin:4px 0 0;color:var(--red-deep);font-size:27px}
.panel-head .icon-close{color:#7b5c45}
.panel-body,.teacher-body{padding:18px 22px 24px;line-height:1.7}
.panel-body p{margin:8px 0 14px}
.panel-body h4{margin:18px 0 6px;color:var(--red-deep)}
.panel-body .note,.privacy-note{font-size:13px;color:#806b5b}
.tag{display:inline-flex;align-items:center;border:1px solid #e2c48b;border-radius:999px;padding:3px 9px;background:#fff2d5;color:#79501d;font-size:12px}
.quote{padding:10px 13px;border-left:3px solid var(--gold);border-radius:5px;background:#fff3d7;color:#63361f}
.panel-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.panel-actions button,.secondary-btn{border:1px solid #d4ac67;border-radius:10px;padding:9px 12px;background:#fffaf0;color:#6b341e}
.panel-actions button:hover,.secondary-btn:hover{background:#f8e6bd}
.primary-btn{border:0;border-radius:12px;padding:11px 16px;background:linear-gradient(135deg,var(--red),var(--red-deep));color:#fff;font-weight:700}
.coze-launch-card{margin:12px 0;padding:14px;border:1px solid #dfb25f;border-radius:16px;background:linear-gradient(135deg,#fff2c9,#fffaf0);box-shadow:0 8px 20px rgba(113,48,23,.09)}
.coze-launch-card strong{display:block;color:#8f2c20;font-size:17px}.coze-launch-card p{margin:5px 0 12px}.coze-launch-btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;box-shadow:0 7px 16px rgba(135,35,27,.22)}
.coze-launch-btn:hover{filter:brightness(1.06)}.offline-title{margin:16px 0 5px;color:#75432a;font-size:14px}
.diagram{display:grid;place-items:center;padding:16px;border-radius:16px;background:#f7e8c7;border:1px solid #d6b57d}
.diagram svg{width:min(280px,100%);height:auto}
.photo-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.photo-card{margin:0;border:1px solid #dfc89e;border-radius:14px;overflow:hidden;background:#fff}
.photo-card img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover}
.photo-card figcaption{padding:10px;font-size:13px;line-height:1.5}
.source-link{color:#8d2d22;text-decoration:underline;text-underline-offset:3px}
.pattern-large{display:grid;place-items:center;min-height:180px;border-radius:16px;background:#8e2b21}
.pattern-large svg{width:80%;height:135px}
.motif-section{margin-top:17px}.motif-section h4{margin:0 0 8px!important}.motif-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:7px}
.motif-card{display:grid;justify-items:center;gap:3px;border:1px solid #e3cba2;border-radius:12px;background:#fffdf7;color:#6b3925;padding:8px 3px;min-height:69px}
.motif-card span{font:700 25px/1.2 KaiTi,STKaiti,serif;color:#a73526}.motif-card strong{font-size:12px}.motif-card:hover,.motif-card.active{background:#f9e6bb;border-color:#b76f3a;box-shadow:0 2px 10px rgba(155,76,29,.13)}
.motif-detail{display:flex;align-items:center;gap:12px;margin-top:17px;padding:13px;border-radius:15px;background:#f5dfb3;color:#592b1a;min-height:90px}.motif-detail-icon{font:700 40px/1 KaiTi,STKaiti,serif}.motif-detail p{margin:1px 0!important}.motif-detail small{color:#765844}.motif-detail .secondary-btn{margin-left:auto;white-space:nowrap}
.mascot-hero{display:flex;align-items:center;gap:10px;padding:4px 12px 4px 0;border-radius:18px;background:linear-gradient(130deg,#ffe6ac,#fff9eb);min-height:136px;overflow:hidden}.mascot-hero img{width:130px;height:155px;object-fit:contain;align-self:flex-end;filter:drop-shadow(0 8px 9px rgba(106,41,12,.2))}.mascot-hero strong{font:700 23px KaiTi,STKaiti,serif;color:#8f2c20}.mascot-hero p{margin:4px 0!important;font-size:14px}
.ai-form label{display:block;margin:11px 0 5px;font-size:13px;color:#765c48}
.ai-form input,.ai-form textarea,.ai-form select{width:100%;border:1px solid #d6bd91;border-radius:10px;padding:10px;background:#fffefa;color:#2d1a13;user-select:text}
.ai-form textarea{min-height:72px;resize:vertical}
.ai-row{display:flex;gap:8px;margin-top:12px}
.ai-row button{flex:1}
.ai-row button:disabled{opacity:.5;cursor:not-allowed}
.ai-flow{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0 4px;padding:0;list-style:none;counter-reset:flow}
.ai-flow li{flex:1 1 30%;min-width:105px;padding:7px 8px;border:1px solid #e2c896;border-radius:9px;background:#fff7e6;color:#7a4c2c;font-size:12px;text-align:center}
.ai-flow li::before{counter-increment:flow;content:counter(flow) ' ';font-weight:700;color:#a63b2f}
.question-chips,.motion-tabs,.face-choice{display:flex;flex-wrap:wrap;gap:7px;margin:8px 0}.question-chips button,.motion-tabs button,.face-choice button{border:1px solid #d6b57d;border-radius:999px;background:#fff8e8;color:#754229;padding:6px 10px;cursor:pointer}.question-chips button:hover,.motion-tabs button.active,.face-choice button:hover{background:#f4d99b;border-color:#b76f3a}.motion-stage{padding:8px;border-radius:16px;background:#fff1cc;border:1px solid #ddb777}.motion-stage svg{width:100%;height:auto}.motion-cloud,.motion-flower,.motion-fret{transform-box:fill-box;transform-origin:center;animation:motifPulse 2.8s ease-in-out infinite}.motion-flower{animation-duration:3.2s}.motion-fret{animation-duration:2.4s}@keyframes motifPulse{0%,100%{transform:scale(.94);opacity:.72}50%{transform:scale(1.04);opacity:1}}.assembly-card{display:grid;grid-template-columns:34px 1fr;gap:7px 9px;align-items:start;padding:12px;border-radius:16px;background:#fff2d0;border:1px solid #ddbb77}.assembly-card p{grid-column:2;margin:0!important}.assembly-step{display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:#a73526;color:#fff;font-weight:700}.face-choice button{flex:1}.face-choice button:hover{transform:translateY(-1px)}
.ai-result{margin-top:14px;padding:12px;border-left:4px solid #56824c;border-radius:8px;background:#edf6e8}
.ai-result label{display:block;margin:12px 0 5px;color:#345c32;font-size:13px}
.ai-result textarea{display:block;width:100%;min-height:84px;padding:10px 12px;border:1px solid #a9c49f;border-radius:10px;background:#fffefa;color:#2d1a13;resize:vertical;user-select:text;font:inherit;line-height:1.5}
.ai-result p{overflow-wrap:anywhere}
.voice-input{width:100%;margin-top:8px}
.voice-input:disabled{opacity:.55;cursor:not-allowed}
.voice-hint{margin:8px 0!important;color:#7a5d47;font-size:12px;line-height:1.45}
.approval-line:not(:empty){margin:10px 0 0!important;padding:9px 10px;border-radius:8px;background:#fffdf3;color:#496a3e;font-size:13px}
.decision-row{display:flex;gap:7px;flex-wrap:wrap;margin-top:10px}
.decision-row button{border:1px solid #b8caaf;border-radius:999px;padding:7px 11px;background:#fff;color:#3e6738}
.tool-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}
.tool-card{border:1px solid #dec18e;border-radius:14px;padding:12px 8px;background:#fff8e9;text-align:center}
.tool-card strong{display:block;color:#7b2b20}
.tool-card.selected{box-shadow:0 0 0 3px #f0c76f;background:#fff0c5}
.model-wrap{border-radius:16px;background:radial-gradient(circle,#fff4d6,#e6c28c);overflow:hidden}
#lampModel{display:block;width:100%;height:280px;touch-action:none}
.art-stage{position:fixed;z-index:7;transform:translate(-50%,-50%);width:min(250px,28vw);pointer-events:none;text-align:center;filter:drop-shadow(0 15px 20px rgba(0,0,0,.45))}
.art-frame{display:grid;place-items:center;aspect-ratio:4/3;border:8px solid #7b351f;outline:3px solid #e6b85c;background:rgba(255,245,211,.92);color:#744a33;font-size:13px;overflow:hidden}
.art-frame img{width:100%;height:100%;object-fit:contain;background:#fff}
.art-label{display:inline-block;margin-top:8px;padding:4px 12px;border-radius:999px;background:#5c2418;color:#ffe8ac;font-size:12px}
body.festival-lit #pano{filter:brightness(1.16) saturate(1.12)}
body.festival-lit .art-stage{filter:drop-shadow(0 0 28px #ffd36d) drop-shadow(0 15px 20px rgba(0,0,0,.45))}
.workshop-dock{position:fixed;z-index:12;left:50%;bottom:112px;transform:translateX(-50%);align-items:center;gap:7px;padding:8px;border:1px solid var(--line);border-radius:15px;background:rgba(28,13,8,.86);backdrop-filter:blur(12px)}
.workshop-dock:not([hidden]){display:flex}
.workshop-dock>span{padding:0 7px;color:#f0d39e;font-size:12px}
.workshop-dock button{border:1px solid rgba(243,197,104,.36);border-radius:10px;padding:8px 11px;background:rgba(255,255,255,.08);color:#fff}
.workshop-dock button.active{background:var(--red);border-color:var(--gold)}
.teacher-panel{z-index:34}
.teacher-jumps{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.teacher-jumps button{border:0;border-radius:12px;padding:12px 6px;background:#8e2b21;color:#fff;font-weight:700}
.teacher-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:16px 0}
.teacher-grid button,.timer-box button{border:1px solid #dbc49a;border-radius:10px;padding:10px;background:#fffaf0;color:#5f3525}
.timer-box{padding:14px;border-radius:14px;background:#f5e8ce}
.timer-box>span{font-size:13px;color:#765b43}.timer-box>strong{display:block;margin:3px 0 10px;font:700 38px/1 ui-monospace,SFMono-Regular,Consolas,monospace;color:#7e271e}
.timer-box>div{display:flex;gap:7px}.timer-box button{flex:1;background:#fff}
.scrim{position:fixed;z-index:29;inset:0;background:rgba(0,0,0,.48)}
.activity-overlay{position:fixed;z-index:50;inset:0;display:grid;place-content:center;justify-items:center;padding:30px;text-align:center;background:radial-gradient(circle at 50% 38%,#56261d,#170b08 65%);color:#fff}
.activity-overlay[hidden]{display:none}
.activity-overlay .icon-close{position:absolute;right:22px;top:18px}
.activity-overlay h2{font-size:clamp(30px,5vw,58px);margin:16px 0 8px}
.activity-overlay>p:not(.kicker){font-size:18px;color:#f1dec7}
.activity-overlay>strong{font:700 clamp(54px,9vw,110px)/1 ui-monospace,Consolas,monospace;color:#ffe19a;margin:26px 0}
.activity-lantern{width:76px;height:92px;border:3px solid #f3c568;border-radius:20px 20px 28px 28px;background:radial-gradient(circle,#e55a3e,#8e241c);box-shadow:0 0 45px rgba(245,196,97,.38);position:relative}
.activity-lantern::after{content:"";position:absolute;left:50%;top:100%;height:24px;border-left:3px solid #f3c568}
.scene-nav{position:fixed;z-index:18;left:50%;bottom:20px;transform:translateX(-50%);display:flex;gap:6px;padding:7px;border:1px solid var(--line);border-radius:18px;background:rgba(24,11,7,.88);backdrop-filter:blur(14px);box-shadow:0 10px 36px rgba(0,0,0,.35)}
.scene-nav button{min-width:116px;border:0;border-radius:12px;padding:9px 11px;background:transparent;color:#e8d7c4;text-align:left}
.scene-nav button span{display:block;color:#bd9b76;font-size:11px;margin-bottom:2px}
.scene-nav button.active{background:linear-gradient(135deg,#943428,#6f2019);color:#fff;box-shadow:inset 0 0 0 1px #e8b85a}
.view-tools{position:fixed;z-index:18;right:24px;bottom:103px;display:flex;gap:6px}
.view-tools button{min-width:42px;padding:8px 11px}
.drag-hint{position:fixed;z-index:6;left:50%;top:89px;transform:translateX(-50%);margin:0;padding:7px 12px;border-radius:999px;background:rgba(20,9,6,.56);color:#f5dfbd;font-size:12px;pointer-events:none}
.toast{position:fixed;z-index:60;left:50%;bottom:20px;transform:translate(-50%,20px);max-width:min(640px,90vw);padding:10px 16px;border:1px solid var(--line);border-radius:999px;background:#35170f;color:#fff;opacity:0;pointer-events:none;transition:.25s;text-align:center}
.toast.show{opacity:1;transform:translate(-50%,0)}
.teacher-upload-page[hidden]{display:none}.teacher-upload-page{position:fixed;z-index:80;inset:0;overflow:auto;background:radial-gradient(circle at 75% 14%,#82422a,#24110b 55%,#120806);color:#fff}.upload-shell{max-width:1240px;margin:auto;padding:24px clamp(22px,4vw,58px)}.upload-top{display:flex;align-items:center;gap:12px;color:#ffe5b2}.upload-top .glass-btn{margin-left:auto;text-decoration:none}.upload-emblem{display:grid;place-items:center;width:43px;height:50px;border:2px solid #ecc574;border-radius:11px;background:#a63426;font:27px KaiTi,serif}.upload-grid{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:clamp(25px,5vw,70px);min-height:calc(100vh - 110px)}.upload-copy h2{font:400 clamp(34px,4.6vw,60px)/1.18 KaiTi,STKaiti,serif;color:#fff5d6;margin:10px 0 20px}.upload-copy>p:not(.kicker){color:#efdec2;line-height:1.8}.upload-pick{display:inline-block;margin:18px 10px 16px 0;cursor:pointer}.upload-copy .secondary-btn{margin:0 0 16px}.upload-copy button:disabled{opacity:.45;cursor:not-allowed}.upload-caution{font-size:13px;max-width:420px}.upload-preview{display:grid;place-items:center;min-height:430px;border:9px solid #874528;outline:2px solid #d8ad61;border-radius:14px;background:linear-gradient(145deg,#fae8c6,#ebcd96);color:#866145;box-shadow:0 25px 60px rgba(0,0,0,.34)}.upload-preview img{width:100%;max-height:calc(100vh - 160px);object-fit:contain;background:#fff}.upload-preview img[hidden]{display:none}
.hotspot[hidden],.art-stage[hidden]{display:none}
body.upload-only{height:auto;overflow:auto}.teacher-upload-page.standalone{position:relative;min-height:100vh;overflow:visible}
@media(max-width:900px){
  .topbar{padding:12px 14px}.brand-mark{width:38px;height:46px}.brand small{display:none}.top-actions{gap:6px}.glass-btn{padding:8px 11px;font-size:14px}
  .drag-hint{display:none}.scene-nav{bottom:8px;width:calc(100vw - 16px);overflow-x:auto;justify-content:flex-start}.scene-nav button{min-width:108px}
  .view-tools{right:12px;bottom:92px}.side-panel,.teacher-panel{top:78px;right:10px;width:calc(100vw - 20px);max-height:calc(100vh - 155px)}
  .workshop-dock{bottom:87px;width:calc(100vw - 20px);overflow-x:auto;justify-content:flex-start}
  .upload-grid{grid-template-columns:1fr;padding-top:50px}.upload-preview{min-height:300px}
}
@media(max-width:560px){
  .brand h1{max-width:135px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.brand-mark{display:none}
  .top-actions .glass-btn:first-child{display:none}.photo-grid,.tool-cards{grid-template-columns:1fr}.teacher-grid{grid-template-columns:1fr}.art-stage{width:42vw}
  .hotspot{padding-right:9px;font-size:13px}.hotspot .dot{width:24px;height:24px}
  .motif-grid{grid-template-columns:repeat(4,1fr)}.motif-detail{flex-wrap:wrap}.mascot-hero img{width:105px;height:130px}
}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}