:root{font-family:'Microsoft YaHei','PingFang SC',sans-serif;color:#eef9fc;background:#080c0d;--gold:#f6ce76;--cyan:#75e5f4;--red:#ff666b;--line:#93d4db40;letter-spacing:0}
*{box-sizing:border-box}body{margin:0;overflow:hidden}button,input,select,textarea{font:inherit}button{cursor:pointer;color:inherit}button:disabled{opacity:.4;cursor:default}button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--gold);outline-offset:4px}[hidden]{display:none!important}button{border:1px solid var(--line);background:#122a30;padding:12px 18px;border-radius:5px;display:inline-flex;align-items:center;justify-content:center;gap:10px;font-size:20px;font-weight:700}button:hover{border-color:var(--gold)}button svg{width:24px;height:24px;flex-shrink:0}.icon-button{width:48px;height:48px;padding:10px}.primary{background:var(--gold);color:#161c1e;border-color:var(--gold)}.danger{background:#692c36}.blue{background:#234c86}.green{background:#23543e}
#app,.courseware,#vrCanvas{position:fixed;inset:0;width:100%;height:100%}#vrCanvas{display:block;touch-action:none}.loading-screen{position:fixed;inset:0;z-index:100;background:#090807;display:flex;flex-direction:column;align-items:center;justify-content:center;transition:opacity .7s,visibility .7s}.cover-slide{width:100%;height:calc(100% - 86px);object-fit:contain}.cover-controls{height:86px;display:flex;gap:24px;align-items:center;justify-content:center;width:100%;background:#111716}.cover-controls span{font-size:18px;color:#b9c9c3}.loading-screen.is-entering{opacity:0;visibility:hidden}.scan-screen{position:absolute;inset:0;background:#020908;display:grid;place-content:center;justify-items:center;gap:28px}.scan-screen p{font-size:28px;text-align:center;padding:0 20px}.radar{width:240px;height:240px;border:2px solid #51ff9e;border-radius:50%;background:repeating-radial-gradient(circle,#0000 0 37px,#54ffa944 38px 40px),conic-gradient(from 0deg,#0000 60%,#5cff9955);animation:spin 2s linear infinite;box-shadow:0 0 40px #4f97}.scan-screen strong{font-size:32px;color:#85ffb9}
.topbar{position:absolute;z-index:20;top:18px;left:24px;right:24px;display:flex;align-items:center;justify-content:space-between;gap:20px}.mission-title{display:flex;gap:16px;align-items:center;background:#0b191de8;padding:12px 24px;border-bottom:1px solid var(--line)}.mission-title span{font-size:13px;color:var(--gold)}.mission-title strong{font-size:24px}.top-actions{display:flex;gap:8px}.return-button{color:var(--gold);background:#111b1be8}.hall-heading{position:absolute;top:105px;left:32px;pointer-events:none}.hall-heading span{color:var(--gold);font-size:15px}.hall-heading h1{font-size:32px;margin:7px 0}.hall-heading p{font-size:18px;margin:0;color:#d2d8d1}.hub-label{position:absolute;left:50%;top:30%;transform:translateX(-50%);text-align:center;pointer-events:none;text-shadow:0 2px 8px #000}.hub-label strong{font-size:26px;color:#91f6ff;display:block}.hub-label small{font-size:14px;letter-spacing:2px}
.hotspot-layer{position:absolute;inset:0;pointer-events:none}.hotspot-button{position:absolute;transform:translate(-50%,-50%);pointer-events:auto;background:#102a3077;border:0;border-radius:0;min-width:130px;padding:10px;font-size:26px;text-shadow:0 2px 4px #000;transition:opacity .2s;display:block}.hotspot-button small{display:block;font-size:18px;margin-top:5px;color:#e5f3ee}.hotspot-button>span{display:block}.hotspot-button .status{font-size:12px;color:#ff9497;letter-spacing:2px;margin-top:12px}.hotspot-button.is-fixed .status{color:var(--gold)}.fragment-nav{position:absolute;left:50%;bottom:119px;transform:translateX(-50%);display:flex;gap:8px;z-index:12}.fragment-nav button{background:#0c1b20d9;font-size:16px;padding:10px 18px}.fragment-nav button.is-fixed{border-color:var(--gold);color:var(--gold)}.mission-panel{position:absolute;left:24px;bottom:122px;width:205px;background:#0c1a1ed9;padding:14px 16px;border-left:2px solid var(--gold)}.progress-copy{display:flex;gap:14px;align-items:center;font-size:14px}.progress-copy strong{font-size:27px;color:var(--gold)}.progress-track{height:4px;background:#ffffff26;margin-top:12px}.progress-track span{height:100%;display:block;background:var(--gold);width:0;transition:width .4s}.control-deck{position:absolute;z-index:30;bottom:18px;left:24px;right:24px;display:grid;grid-template-columns:230px auto minmax(100px,1fr) auto;gap:22px;align-items:center;padding:14px 18px;background:#09161eee;border:1px solid #72c4d155}.audio-now span{font-size:13px;color:var(--gold);display:block}.audio-now strong{font-size:22px;display:block;margin-top:6px}.play-button{background:var(--gold);color:#15201f;min-width:105px}.track-seek{width:100%;accent-color:var(--cyan)}.deck-tools{display:flex;gap:8px}.deck-tools button{font-size:17px;padding:12px}.track-times{font-size:13px;color:#a4bac2;display:flex;justify-content:space-between}
.fragment-panel{position:absolute;z-index:15;inset:91px 24px 118px;background:#071319f5;border:1px solid var(--line);display:flex;flex-direction:column;backdrop-filter:blur(12px)}.panel-head{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;gap:20px;border-bottom:1px solid var(--line);flex-shrink:0}.panel-tag{font-size:16px;color:var(--gold)}.panel-head h2{font-size:32px;margin:5px 0 0}.panel-body{overflow:auto;overscroll-behavior:contain;scroll-behavior:smooth;min-height:0;flex:1;padding:20px 24px}.module-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin:0 0 18px}.module-actions .complete{margin-left:auto;background:#223933}.lesson-label{font-size:30px;margin:0 0 16px;font-weight:700}.visual-canvas{width:100%;height:330px;display:block}.wave-legend{display:flex;justify-content:space-between;font-size:28px;padding:20px 0}.wave-legend strong{color:var(--red)}.wave-legend span{color:#72b4ff}.stage3d{width:100%;height:365px;position:relative;overflow:hidden}.stage3d canvas{width:100%;height:100%;display:block}.stage-caption{position:absolute;top:12px;left:20px;right:20px;font-size:30px;font-weight:700;text-shadow:0 2px 8px #000;pointer-events:none}.voice-legend{display:flex;justify-content:center;gap:40px;font-size:25px;margin-top:12px}.voice-legend span::before{content:'';display:inline-block;width:12px;height:12px;background:var(--c);margin-right:10px}.shatter-overlay{position:absolute;inset:0;pointer-events:none;overflow:hidden}.shatter-overlay i{position:absolute;inset:0;background:#70d9b86b;clip-path:var(--shape);animation:shatter .85s ease-in forwards;transform-origin:center}.spectrum-mode .fragment-panel{border-color:#fa7979}.spectrum-mode .panel-head{background:#63192355}
.dialect-task{font-size:30px;color:var(--gold);margin:0;text-align:center;animation:taskBlink 1.7s ease-in-out infinite}.duet-stage{height:215px}.duet-roles{display:flex;justify-content:center;gap:150px;position:absolute;bottom:0;left:0;right:0;font-size:26px;font-weight:700;color:var(--cyan)}.duet-layout{display:grid;grid-template-columns:1fr 1fr;gap:32px}.duet-layout section{min-width:0}.duet-layout h3{font-size:28px;margin:10px 0 16px}.beat-chart{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.beat-cell{height:108px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:6px;background:#172f36;border:2px solid transparent}.beat-cell strong{font-size:32px}.beat-cell small{font-size:17px;color:#bdcfd0}.beat-cell.rest{background:#293024}.beat-cell.active{border-color:var(--gold);background:#5a512c}.empty-beat{display:flex;align-items:center;justify-content:center;gap:24px;height:108px}.beat-ring{height:102px;width:102px;border:5px solid #548383;border-radius:50%;display:grid;place-items:center;font-size:38px;flex-shrink:0}.beat-ring.hit{border-color:var(--gold);box-shadow:0 0 25px #f6ce7666;background:#f6ce7622}.empty-beat strong{font-size:32px;color:var(--gold)}.tempo-controls{display:flex;align-items:center;gap:12px;font-size:18px}.tempo-controls input{width:76px;background:#173039;border:1px solid var(--line);color:white;padding:7px}.tempo-controls select{background:#173039;border:1px solid var(--line);color:white;padding:7px}.duet-bottom{margin-top:22px}.evaluation{margin-top:22px;padding-top:16px;border-top:1px solid var(--line)}.evaluation h3{font-size:30px;margin:0 0 8px}.evaluation p{font-size:18px;color:var(--gold);margin:0 0 15px}.evaluation-layout{display:grid;grid-template-columns:1fr 300px;align-items:center;gap:30px}.score-inputs{display:grid;gap:12px}.score-inputs label{font-size:20px;display:grid;grid-template-columns:1fr 75px;gap:12px;align-items:center}.score-inputs input{background:#1a333b;border:1px solid var(--line);color:white;width:75px;padding:8px}.score-result{font-size:30px;color:var(--gold);text-align:center}.radar-canvas{height:330px}
.training-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin:16px 0}.training-card{padding:24px 12px;background:#14292f;min-height:165px;border-bottom:4px solid #365056;text-align:center}.training-card svg{width:65px;height:65px;margin-bottom:14px}.training-card h3{font-size:28px;margin:0}.training-card.is-active{color:#101c20;background:var(--gold);border-color:#fff2b4}.split-groups{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:22px 0}.group{padding:22px;min-height:144px;opacity:.65}.group-a{background:#193e6a;border:2px solid #73b3ff}.group-b{background:#5b252b;border:2px solid #fc858b}.group.active{opacity:1;box-shadow:inset 0 0 60px #ffffff1c}.group h3{font-size:30px;margin:0 0 10px}.group p{font-size:32px;margin:0}.training-status{font-size:28px;color:var(--gold);margin:12px 0}.matrix-stage{height:340px}.mode-controls{display:flex;gap:8px}.mode-controls button[aria-pressed=true]{background:#e8f3ef;color:#112323}.module-open .hall-heading,.module-open .hub-label,.module-open .fragment-nav,.module-open .mission-panel{display:none}.module-open .hotspot-layer{visibility:hidden}
.finale-overlay{position:absolute;inset:0;z-index:40;pointer-events:none}.finale-overlay>*{pointer-events:auto}.star-copy{position:absolute;top:55px;left:24px;right:24px;text-align:center}.star-copy span{color:var(--gold);font-size:22px}.star-copy h2{font-size:34px;line-height:1.6;margin:14px 0}.seal-button{position:absolute;left:50%;bottom:54px;transform:translateX(-50%);font-size:32px;padding:22px 40px;background:var(--gold);color:#142027}.barrage{position:absolute;inset:32% 10% 25%;overflow:hidden;pointer-events:none}.barrage span{position:absolute;font-size:26px;color:#9ef4fa;white-space:nowrap;animation:messageOrbit 14s linear infinite}.barrage span:nth-child(2){top:25%;animation-delay:-5s}.barrage span:nth-child(3){top:50%;animation-delay:-9s}.barrage span:nth-child(4){top:75%;animation-delay:-2s}.final-video-wrap{position:absolute;inset:0;background:#02060b;display:flex;align-items:center;justify-content:center}.final-video-wrap video{width:100%;height:100%;object-fit:contain}.video-toolbar{position:absolute;top:18px;right:20px;display:flex;gap:10px;z-index:5}.credits{position:absolute;left:0;right:0;bottom:65px;height:170px;overflow:hidden;pointer-events:none;text-align:center;background:linear-gradient(transparent,#020711c9,transparent)}.credits>div{animation:creditsRoll 44s linear infinite;transform:translateY(180px)}.credits p{font-size:30px;line-height:1.8;color:#fff6d9;text-shadow:0 2px 8px black}.tribute-text{position:absolute;inset:0;display:grid;place-content:center;text-align:center;background:#000b;color:var(--gold);font-size:76px;font-weight:900}.tribute-text button{font-size:22px;margin-top:25px}.finale-active .topbar,.finale-active .control-deck,.finale-active .fragment-nav,.finale-active .mission-panel,.finale-active .hall-heading,.finale-active .hub-label{display:none}.toast{position:absolute;z-index:110;bottom:110px;left:50%;transform:translateX(-50%);background:#eed7a1;color:#172727;font-size:20px;padding:12px 22px;max-width:90%;text-align:center;pointer-events:none}.message-entry{display:flex;gap:10px;margin-top:20px}.message-entry input{flex:1;min-width:0;padding:12px;background:#142b31;border:1px solid var(--line);color:white;font-size:20px}
.hotspot-button{background:transparent}.progress-copy>span{flex:1;line-height:1.6}.mission-panel{width:230px}.progress-copy strong{flex-shrink:0}.duet-roles{gap:210px}
.song-name{display:inline-block;white-space:nowrap}.gesture-icon{font-family:'Segoe UI Emoji',sans-serif;display:block;font-size:62px;line-height:1.3;margin-bottom:12px}.score-result{border:3px double var(--gold);padding:13px;transform:rotate(-4deg);font-weight:900}
@media(max-width:700px){.courseware .hall-heading p{display:none}.training-card .gesture-icon{font-size:42px}.courseware .hall-heading h1{font-size:24px}}
@keyframes spin{to{transform:rotate(360deg)}}@keyframes taskBlink{50%{opacity:.5}}@keyframes shatter{to{transform:translate(var(--dx),var(--dy)) rotate(var(--rot));opacity:0}}@keyframes messageOrbit{from{transform:translateX(-400px)}to{transform:translateX(1300px)}}@keyframes creditsRoll{to{transform:translateY(-900px)}}
@media(min-width:1700px){.stage3d{height:460px}.visual-canvas{height:440px}.duet-stage{height:245px}.training-card{min-height:210px}.panel-body{padding:26px 36px}.module-actions button{font-size:24px}.duet-bottom{margin-top:30px}}
@media(max-height:760px) and (min-width:901px){.stage3d{height:270px}.visual-canvas{height:260px}.duet-stage{height:150px}.training-card{min-height:130px;padding:14px}.training-card svg{width:46px;height:46px}.panel-body{padding:14px 22px}.group{padding:12px;min-height:110px}.panel-head h2{font-size:28px}.module-actions{margin-bottom:12px}.beat-cell,.empty-beat{height:85px}.beat-ring{width:80px;height:80px}.duet-bottom{margin-top:15px}}
@media(max-width:1100px){.mission-title strong{font-size:20px}.control-deck{grid-template-columns:170px auto minmax(80px,1fr) auto;gap:12px}.deck-tools button span{display:none}.fragment-nav{left:auto;right:24px;transform:none}.fragment-nav button{padding:10px 13px}.evaluation-layout{grid-template-columns:1fr 240px}.voice-legend{gap:18px;font-size:20px}}
@media(max-width:700px){.cover-controls{height:110px;flex-direction:column;gap:8px}.cover-controls span{font-size:14px}.cover-slide{height:calc(100% - 110px)}.topbar{top:12px;left:12px;right:12px;gap:8px;flex-wrap:wrap}.topbar .return-button{padding:10px;font-size:16px}.mission-title{order:3;width:100%;justify-content:center;padding:8px;gap:10px}.mission-title strong{font-size:16px}.mission-title span{font-size:10px}.hall-heading{top:122px;left:16px}.hall-heading h1{font-size:26px}.hall-heading p{font-size:15px}.hub-label{top:37%}.hub-label strong{font-size:20px}.hub-label small{font-size:10px}.hotspot-button{font-size:20px;min-width:90px;padding:4px}.hotspot-button small{font-size:14px}.hotspot-button .status{font-size:10px}.mission-panel{left:12px;bottom:229px;width:162px;padding:10px}.progress-copy{font-size:11px}.progress-copy strong{font-size:22px}.fragment-nav{bottom:174px;left:12px;right:12px;justify-content:space-between;gap:5px}.fragment-nav button{font-size:15px;padding:10px;flex:1}.control-deck{left:12px;right:12px;bottom:12px;padding:10px;grid-template-columns:minmax(0,1fr) auto;gap:8px}.audio-now strong{font-size:19px}.deck-tools{grid-row:2;grid-column:2;gap:5px}.deck-tools button{padding:8px}.seek-wrap{grid-row:2;grid-column:1}.track-times{font-size:11px}.control-deck button{font-size:16px}.fragment-panel{inset:116px 10px 169px}.panel-head{padding:12px}.panel-tag{font-size:14px}.panel-head h2{font-size:24px;line-height:1.35}.panel-body{padding:14px}.module-actions{gap:8px}.module-actions button{font-size:17px;padding:10px;min-height:44px}.module-actions .complete{margin-left:0}.lesson-label,.stage-caption{font-size:23px}.stage-caption{left:10px;right:10px}.stage3d{height:300px}.visual-canvas{height:260px}.wave-legend{font-size:22px;gap:14px;flex-direction:column}.voice-legend{flex-wrap:wrap;gap:14px;font-size:18px}.duet-layout{grid-template-columns:1fr;gap:16px}.dialect-task{font-size:24px}.duet-stage{height:185px}.duet-roles{font-size:22px;gap:75px}.duet-layout h3{font-size:23px}.beat-cell{height:90px}.beat-cell strong{font-size:26px}.beat-cell small{font-size:14px}.tempo-controls{flex-wrap:wrap;font-size:16px}.evaluation-layout{grid-template-columns:1fr;gap:12px}.training-grid{grid-template-columns:1fr 1fr;gap:8px}.training-card{min-height:126px;padding:15px 5px}.training-card svg{height:40px;width:40px}.training-card h3{font-size:23px}.split-groups{gap:8px}.group{padding:12px;min-height:120px}.group h3{font-size:24px}.group p{font-size:24px}.training-status{font-size:23px}.star-copy{top:30px;left:16px;right:16px}.star-copy h2{font-size:27px}.seal-button{font-size:25px;padding:18px 25px;white-space:nowrap;bottom:40px}.credits p{font-size:22px}.tribute-text{font-size:50px}.scan-screen p{font-size:22px}.scan-screen strong{font-size:24px}}