@font-face{font-family:local-round;src:local('Microsoft YaHei')}*{box-sizing:border-box}html{font-size:16px;color:#24423d;background:#f5f3ee}body{margin:0;font-family:'Segoe UI',local-round,'PingFang SC',sans-serif}button{font:inherit;cursor:pointer;border:0;touch-action:manipulation}button:focus-visible{outline:3px solid #df8b26;outline-offset:4px}button:disabled{cursor:default}button svg{width:20px;height:20px;display:block}button[hidden],[hidden]{display:none!important}.topbar{max-width:1540px;margin:auto;padding:22px 38px 19px;display:flex;align-items:center;gap:28px;justify-content:space-between}.brand{display:flex;gap:12px;align-items:center;flex-shrink:0}.brand-mark{font:700 32px Georgia,serif;background:#24453c;color:#f5d9a6;width:43px;height:47px;display:grid;place-items:center;border-radius:13px 13px 18px 18px;transform:rotate(-4deg)}.eyebrow{font-size:10px;letter-spacing:.22em;font-weight:700;color:#78847b;margin-bottom:4px}h1{font-size:21px;letter-spacing:.05em;margin:0;font-weight:650}.chapters{display:flex;align-items:center;gap:14px}.chapters i{height:1px;width:28px;background:#d3d9d0}.chapter{font-size:15px;white-space:nowrap;color:#7b8479;background:transparent;padding:10px 15px;border-radius:28px;transition:.2s}.chapter span{font-family:Georgia,serif;margin-right:7px}.chapter.active{background:#e3e9de;color:#2b513f;font-weight:700}.chapter:hover{background:#e9ede5}.utilities{display:flex;gap:7px}.utility{padding:10px 13px;background:transparent;color:#456050;border-radius:10px;font-size:14px}.utility:hover{background:#e6e9e0}.icon-button{width:39px;display:grid;place-items:center;padding:9px}.game-shell{width:min(1440px,calc((100svh - 220px)*16/9));max-width:calc(100% - 64px);margin:0 auto;min-width:0}.scene-board{aspect-ratio:16/9;width:100%;position:relative;overflow:hidden;background:#bccbc0;isolation:isolate;box-shadow:0 15px 45px -20px #213c453f;border-radius:13px}.scene-image{position:absolute;inset:0;width:100%;height:100%;object-fit:fill;user-select:none}.light-wash{position:absolute;inset:0;pointer-events:none;background:linear-gradient(180deg,#132a2335,transparent 28%,transparent 85%,#25332b3d)}.scene-heading{position:absolute;top:4.7%;left:3.3%;color:#fffdf5;max-width:60%;text-shadow:0 2px 9px #17352666;pointer-events:none}.scene-kicker{font-size:clamp(10px,.82vw,13px);letter-spacing:.19em;font-weight:700}.scene-heading h2{font-size:clamp(20px,2.2vw,33px);font-weight:650;margin:8px 0 5px;letter-spacing:.04em}.scene-heading p{font-size:clamp(12px,1vw,16px);margin:0;opacity:.95}.progress-panel{position:absolute;right:3%;top:5%;padding:13px 17px 14px;width:139px;background:#153e35dc;backdrop-filter:blur(10px);color:#fff9e9;border-radius:12px;box-shadow:0 5px 20px #172e2720}.progress-top{display:flex;gap:18px;align-items:baseline;justify-content:space-between}.progress-top>span{font-size:13px}.progress-top strong{font-size:22px;font-weight:500}.progress-top em{font-style:normal;font-size:13px;color:#ced9c5}.progress-track{height:4px;background:#ffffff30;border-radius:3px;margin-top:8px;overflow:hidden}.progress-track div{height:100%;width:0;background:#f0c67c;transition:width .35s}.targets,.items{position:absolute;inset:0;pointer-events:none}.target{position:absolute;transform:translate(-50%,-50%);height:12%;min-height:40px;width:13%;pointer-events:auto;background:transparent;opacity:0;transition:opacity .2s,background .2s;border-radius:45%;color:#fff;z-index:2}.targets.visible .target{opacity:1;background:#fff7ce27;box-shadow:inset 0 0 20px #fff5b43a,0 0 18px #fff8c344}.target span{display:block;position:absolute;left:50%;top:95%;transform:translate(-50%,0);white-space:nowrap;border-radius:16px;background:#214b3de8;padding:6px 12px;font-size:12px;box-shadow:0 4px 12px #17362e33}.target:hover,.target.drag-over{background:#ffe8a780!important;box-shadow:0 0 35px #fff3b6d9!important}.target.correct-target span{background:#305a3c}.item{--rot:0deg;position:absolute;width:7.8%;aspect-ratio:1;left:var(--x);top:var(--y);transform:translate(-50%,-50%) rotate(var(--rot));background:transparent;padding:0;pointer-events:auto;z-index:4;user-select:none;-webkit-user-select:none;touch-action:none;transition:filter .2s,scale .2s;filter:drop-shadow(1px 5px 3px #34392a54);border-radius:15px}.sprite{display:block;width:100%;height:100%;background-image:url('assets/stationery-atlas.png');background-size:400% 200%;background-position:var(--sx) var(--sy);background-repeat:no-repeat;pointer-events:none}.item[data-kind="schoolbag"]{width:10%}.item[data-kind="book"]{width:9%}.item[data-kind="eraser"]{width:6.5%}.item:hover{scale:1.11;filter:drop-shadow(0 0 8px #fff1caaa)}.item.selected{scale:1.12;filter:drop-shadow(0 0 5px #fffbd8) drop-shadow(0 0 12px #ffd986)}.item.dragging{z-index:30;scale:1.15;cursor:grabbing;filter:drop-shadow(4px 13px 6px #34392a60);transition:none}.item.placed{pointer-events:none;scale:.82;filter:drop-shadow(1px 3px 2px #34392a38);animation:land .42s ease}.item.hidden-item .sprite{filter:brightness(0) saturate(0);opacity:.45;clip-path:inset(0 10% 24% 3%)}.item.hidden-item:hover .sprite,.item.hidden-item.selected .sprite{opacity:.72}.item.revealed .sprite{animation:reveal .6s ease}.amy{position:absolute;left:6%;bottom:6%;height:41%;width:18%;pointer-events:none;z-index:5;transform-origin:50% 100%;animation:breathe 5s ease-in-out infinite}.amy img{height:100%;width:100%;object-fit:contain;filter:drop-shadow(0 7px 4px #45382638)}.amy-name{position:absolute;left:50%;bottom:-2%;transform:translateX(-50%);font:italic 17px Georgia,serif;background:#f6efdecf;color:#3e4e3a;padding:3px 17px;border-radius:20px}.amy.speaking{animation:speaking .55s ease-in-out infinite alternate}.scene-bottom{position:absolute;bottom:2.7%;left:3%;right:3%;display:flex;align-items:center;justify-content:space-between;color:#fff;z-index:7;pointer-events:none}.scene-bottom>span{font-size:12px;text-shadow:0 1px 5px #25392a;background:#213b2950;padding:6px 10px;border-radius:16px}.scene-bottom button{pointer-events:auto;color:#fff;background:#1f3e3b90;padding:7px 12px;border-radius:18px;font-size:14px}.scene-bottom button:hover{background:#1f3e3bc4}.toast{position:absolute;top:28%;left:50%;transform:translate(-50%,-10px);opacity:0;transition:.2s;background:#fffaf0;color:#365441;border-radius:12px;box-shadow:0 8px 30px #29382735;padding:12px 22px;font-size:15px;text-align:center;pointer-events:none;z-index:50}.toast.show{opacity:1;transform:translate(-50%,0)}.dialogue{display:flex;align-items:center;gap:20px;padding:21px 4px 13px;min-height:102px}.speaker{display:flex;align-items:center;gap:7px;font-size:10px;font-weight:750;letter-spacing:.13em;white-space:nowrap;align-self:flex-start;margin-top:9px}.speaker-dot{width:6px;height:6px;background:#bc8b44;border-radius:50%}.replay{background:transparent;color:#557259;padding:5px;border-radius:50%;margin-left:1px}.replay:hover{background:#e3e9dc}.replay svg{width:17px;height:17px}.dialogue-copy{flex:1;min-width:0}#english{font-family:Georgia,'Times New Roman',serif;font-size:clamp(20px,1.75vw,27px);font-weight:500;color:#274b3f;margin:0 0 7px;line-height:1.25}#chinese{font-size:14px;color:#7f867b;margin:0;line-height:1.5}.primary{background:#264f41;color:#fffaf0;border-radius:11px;padding:13px 19px;min-height:46px;font-size:15px;display:inline-flex;align-items:center;justify-content:center;gap:20px;box-shadow:0 4px 10px #123d2c16;transition:background .2s,transform .2s}.primary:hover:not(:disabled){background:#37664b;transform:translateY(-1px)}.primary:disabled{background:#e8e9df;color:#a0a594;box-shadow:none;font-size:13px}.dialogue-actions{flex-shrink:0}.lesson-footer{display:flex;justify-content:space-between;gap:20px;padding:4px 5px 15px;color:#9c9e91;font-size:12px}.footer-label{font-size:9px;letter-spacing:.16em;white-space:nowrap}.guess-panel{display:flex;align-items:center;gap:18px;background:#e9eddf;padding:12px 17px;border-radius:10px;margin-bottom:9px}.guess-title{color:#6d7c62;font-size:12px;white-space:nowrap}.guess-title strong{display:block;font-family:Georgia,serif;font-size:17px;margin-top:3px;color:#2d4c3b}.guess-choices{display:flex;gap:7px;flex-wrap:wrap}.guess-choice{padding:8px 11px;border-radius:8px;background:#fafaf1;color:#476444;font-size:13px}.guess-choice:hover{background:#f2d89c}.guess-choice.chosen{background:#355b45;color:white}.welcome{position:absolute;inset:0;z-index:60;background:linear-gradient(90deg,#183e2ddb, #183e2d79 48%,#183e2d05);display:flex;align-items:center}.welcome-content{margin-left:8%;max-width:70%;color:#fffae9}.welcome-kicker{font-size:12px;letter-spacing:.2em;color:#eac896;font-weight:600}.welcome-content h2{font-family:Georgia,local-round,serif;font-size:clamp(22px,3.1vw,43px);font-weight:550;letter-spacing:.06em;margin:18px 0}.welcome-content p{font-size:clamp(12px,1.2vw,17px);color:#e2e7d3;margin:0 0 29px}.welcome .primary{background:#efd096;color:#34533f;font-weight:700;min-width:170px}.welcome .primary:hover{background:#ffe0a5}.welcome-note{display:block;margin-top:16px;font-size:12px;letter-spacing:.06em;color:#d4dfc9}.welcome~*{pointer-events:none}.transition{position:absolute;inset:0;z-index:55;background:linear-gradient(110deg,#f8ebce,#d2e4d3);overflow:hidden}.transition>img{height:55%;position:absolute;bottom:15%;left:0;animation:walk 5.5s linear both;object-fit:contain}.transition-text{position:absolute;right:12%;top:24%;color:#325744;text-align:right}.transition-text span{font-size:12px;letter-spacing:.23em}.transition-text h2{font-size:clamp(22px,3vw,40px);font-weight:500;letter-spacing:.05em}.transition-text p{font:italic 25px Georgia,serif}.transition #skipTransition{position:absolute;right:5%;bottom:7%;background:transparent;color:#516647}.transition-glow{position:absolute;width:120%;height:100%;background:linear-gradient(45deg,transparent,#ffffff40,transparent);transform:rotate(-20deg)}dialog{max-width:420px;width:calc(100% - 40px);padding:30px;border:0;border-radius:16px;background:#faf8ef;color:#35503b;box-shadow:0 20px 100px #122d3340}dialog::backdrop{background:#14352880;backdrop-filter:blur(4px)}dialog h2{font-size:22px;margin-top:0}dialog p{color:#7a8372;font-size:15px;line-height:1.6}dialog>div{display:flex;justify-content:flex-end;gap:10px;margin-top:24px}.shake{animation:shake .3s ease}.celebrate{animation:scene-complete 1s ease}@keyframes breathe{0%,100%{transform:translateY(0) rotate(-.4deg)}50%{transform:translateY(-3px) rotate(.4deg)}}@keyframes speaking{from{transform:translateY(0) rotate(-.6deg)}to{transform:translateY(-3px) rotate(.6deg)}}@keyframes land{0%{scale:1.04}60%{scale:.73}100%{scale:.82}}@keyframes reveal{from{filter:brightness(0);opacity:.3;scale:.9}to{filter:none;opacity:1;scale:1}}@keyframes walk{0%{left:-18%;transform:rotate(-2deg)}20%{transform:rotate(2deg)}40%{transform:rotate(-2deg)}60%{transform:rotate(2deg)}80%{transform:rotate(-2deg)}100%{left:95%;transform:rotate(2deg)}}@keyframes shake{0%,100%{translate:0}30%{translate:-7px}70%{translate:7px}}@keyframes scene-complete{50%{box-shadow:0 0 40px #e0bf7270}}@media(min-width:1800px){.game-shell{width:min(1560px,calc((100svh - 235px)*16/9))}.topbar{max-width:1640px}#english{font-size:29px}}@media(max-width:1000px){.topbar{padding:15px 22px;gap:15px}.eyebrow{font-size:8px}h1{font-size:18px}.brand-mark{height:39px;width:35px;font-size:27px}.chapters{gap:3px}.chapters i{width:12px}.chapter{font-size:13px;padding:8px 9px}.utilities{gap:0}.game-shell{max-width:calc(100% - 36px);width:100%}.dialogue{gap:12px;padding-top:17px}.speaker{font-size:9px;letter-spacing:.06em}.dialogue-actions .primary{font-size:13px;padding:11px 13px}.progress-panel{width:113px;padding:9px 12px}.progress-top>span{font-size:11px}.progress-top strong{font-size:18px}.scene-heading h2{margin:6px 0}.guess-panel{gap:10px;padding:9px}.guess-choice{font-size:12px;padding:7px 9px}}@media(max-width:640px){.topbar{padding:14px 15px;flex-wrap:wrap;gap:12px}.brand{gap:9px}.utilities{margin-left:auto}.chapters{order:3;width:100%;justify-content:center}.chapter{font-size:14px}.chapter.active{padding:8px 22px}.chapters i{width:30px}.game-shell{max-width:calc(100% - 20px)}.scene-board{border-radius:10px}.scene-heading{top:5%;left:4%}.scene-heading h2{font-size:16px}.scene-heading p{display:none}.scene-kicker{font-size:8px;letter-spacing:.12em}.progress-panel{right:3%;width:80px;padding:6px 8px;top:4%}.progress-top{gap:5px}.progress-top>span{font-size:9px}.progress-top strong{font-size:15px}.progress-top em{font-size:10px}.progress-track{margin-top:5px;height:3px}.scene-bottom>span{display:none}.scene-bottom{justify-content:flex-end}.scene-bottom button{font-size:12px;padding:4px 8px}.scene-bottom button span{display:none}.amy-name{font-size:10px;padding:2px 9px}.item{min-width:28px}.target span{font-size:9px;padding:3px 5px}.dialogue{flex-wrap:wrap;padding:14px 5px 12px;gap:6px 10px}.speaker{width:100%;margin:0;font-size:9px}.dialogue-copy{flex-basis:100%}#english{font-size:21px;line-height:1.35}#chinese{font-size:13px}.dialogue-actions{margin-top:6px;width:100%}.dialogue-actions .primary{width:100%;font-size:14px}.lesson-footer{font-size:11px;line-height:1.5}.footer-label{display:none}.guess-panel{align-items:flex-start}.guess-title strong{font-size:15px}.guess-choice{font-size:12px}.welcome-content{margin-left:7%;max-width:86%}.welcome-kicker{font-size:8px}.welcome-content h2{font-size:19px;margin:9px 0}.welcome-content p{font-size:10px;margin:0 0 15px}.welcome .primary{font-size:12px;min-height:35px;min-width:130px;padding:8px 12px}.welcome-note{font-size:9px;margin-top:9px}.toast{font-size:12px;width:70%;padding:8px 12px}.transition-text h2{font-size:18px}.transition-text p{font-size:16px}.transition-text{right:7%}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}
/* Generated bitmap sprites are viewed through their own crop viewBoxes. */
.sprite{background:none;overflow:hidden}.target{pointer-events:none}.targets.visible .target{pointer-events:auto}.item.placed{scale:.5}.item.placed[data-kind="pencil"],.item.placed[data-kind="pen"]{scale:.33}.item.placed[data-kind="schoolbag"]{scale:.62}.item.placed[data-kind="ruler"]{scale:.34}.item.placed .sprite{animation:none}.game-shell:has(.guess-panel:not([hidden])){width:min(1440px,calc((100svh - 285px)*16/9))}@media(max-width:1000px){.game-shell:has(.guess-panel:not([hidden])){width:100%}}
.targets.visible .target{z-index:10}
.item{scale:1;transform:translate(-50%,-50%) rotate(var(--rot)) scale(var(--item-scale,1))}.item:hover{scale:1;--item-scale:1.11}.item.selected{scale:1;--item-scale:1.12}.item.dragging{scale:1;--item-scale:1.15}.item.placed{scale:1;--item-scale:.5;animation:none}.item.placed[data-kind="pencil"],.item.placed[data-kind="pen"]{scale:1;--item-scale:.33}.item.placed[data-kind="schoolbag"]{scale:1;--item-scale:.62}.item.placed[data-kind="ruler"]{scale:1;--item-scale:.34}.scene-board[data-scene="classroom"] .item.placed[data-kind="schoolbag"]{--item-scale:.32}
.panorama-canvas{position:absolute;inset:0;width:100%;height:100%;opacity:0;transition:opacity .3s;cursor:grab}.panorama-canvas.loaded{opacity:1}.scene-board{touch-action:none}.scene-board.panning,.scene-board.panning .panorama-canvas{cursor:grabbing}.view-controls{position:absolute;left:50%;transform:translateX(-50%);display:flex;gap:1px;background:#183c36cf;backdrop-filter:blur(8px);border-radius:22px;padding:2px 5px;pointer-events:auto}.view-controls button{background:transparent!important;padding:5px 10px!important;font-size:14px!important}.view-controls button:first-child,.view-controls button:nth-child(3){font-size:22px!important;padding:0 9px!important}.view-controls button:hover{color:#f5d299}.view-controls #findNext{font-size:12px!important;padding-left:12px!important;color:#e6d4ac}.scene-bottom>span{max-width:36%;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}@media(max-width:640px){.view-controls{left:45%}.view-controls button{font-size:11px!important;padding:3px 6px!important}.view-controls #findNext{font-size:10px!important}.view-controls #viewHome span{display:inline}.scene-bottom .view-controls button:first-child,.scene-bottom .view-controls button:nth-child(3){font-size:19px!important}}
.scene-board{user-select:none;-webkit-user-select:none}.scene-board img{-webkit-user-drag:none}.scene-board button{-webkit-tap-highlight-color:transparent}
.item:not(.placed){transform:translate(-50%,-50%) rotate(var(--surface-roll,0deg)) scaleY(var(--rest-flat,1)) rotate(var(--rot));filter:drop-shadow(0 1px 1px #30271375)}.item:not(.placed):hover,.item:not(.placed).selected{filter:drop-shadow(0 1px 1px #30271375) drop-shadow(0 0 4px #fff2b0)}.item:not(.placed).dragging{transform:translate(-50%,-50%) rotate(var(--rot)) scale(1.07);filter:drop-shadow(3px 10px 5px #30271355)}.item.hidden-item .sprite{clip-path:none;opacity:.55}
/* The panorama owns the whole viewport; controls float above it. */
html,body{width:100%;height:100%;overflow:hidden;background:#183e35}
.app{width:100vw;height:100vh;height:100dvh;overflow:hidden}
.game-shell,.game-shell:has(.guess-panel:not([hidden])){position:fixed;inset:0;width:100%;height:100%;max-width:none;margin:0}
.scene-board{position:absolute;inset:0;width:100%;height:100%;aspect-ratio:auto;border-radius:0;box-shadow:none}
.topbar{position:fixed;inset:0 0 auto;max-width:none;margin:0;padding:12px 24px;min-height:66px;z-index:70;background:linear-gradient(#12372def,#12372d60,transparent);color:#fff9e9;gap:20px;pointer-events:none}
.topbar>*{pointer-events:auto}.brand-mark{width:32px;height:36px;font-size:26px}.eyebrow{font-size:8px;color:#e5dfbf}h1{font-size:16px}.brand{gap:9px}.chapter{color:#f6f3df;background:#173e367a}.chapter.active{background:#f4edda;color:#234f3e}.chapter:hover{background:#ede7d8;color:#234f3e}.chapters i{background:#f6edd655}.utility{color:#faf6e7}.utility:hover{background:#ffffff25}
.scene-heading{top:87px;left:26px;max-width:55%}.scene-heading h2{font-size:clamp(18px,2vw,29px)}.progress-panel{top:86px;right:24px}
.amy{left:20px;bottom:115px;height:32vh;height:32dvh;width:170px;max-height:330px}
.scene-bottom{left:24px;right:24px;bottom:115px}.scene-bottom>span{max-width:30%;margin-left:175px}
.dialogue{position:fixed;left:200px;right:24px;bottom:16px;min-height:80px;max-height:150px;margin:0;padding:13px 18px;gap:15px;background:#fffaf0eb;backdrop-filter:blur(12px);z-index:40;box-shadow:0 3px 18px #12352b25}
.dialogue .speaker{width:auto;align-self:center;margin:0}.dialogue-copy{flex:1;flex-basis:auto}#english{font-size:clamp(18px,1.7vw,26px);margin-bottom:4px}#chinese{font-size:13px}.dialogue-actions{width:auto;margin:0}.dialogue-actions .primary{width:auto;min-height:40px;padding:10px 15px}
.guess-panel{position:fixed;left:50%;bottom:166px;transform:translateX(-50%);width:max-content;max-width:calc(100% - 48px);margin:0;padding:12px 16px;background:#f3f3e8ee;backdrop-filter:blur(10px);z-index:42;max-height:30vh;overflow:auto}
.lesson-footer{display:none}.toast{top:24%;max-width:70%}.welcome-content{max-width:80%}.welcome-content h2{font-size:clamp(26px,3vw,43px)}
@media(max-width:900px){.topbar{min-height:54px;padding:9px 14px;gap:8px}.brand-mark,.eyebrow{display:none}h1{font-size:13px}.chapter{font-size:12px;padding:8px 10px}.chapters{gap:4px}.chapters i{display:none}.utility{padding:7px 8px}.icon-button{width:32px}.scene-heading{top:66px;left:16px}.scene-heading h2{font-size:20px}.scene-heading p{display:none}.progress-panel{top:65px;right:15px}.amy{left:8px;bottom:99px;width:115px;height:32dvh}.dialogue{left:132px;right:12px;bottom:10px;padding:10px 12px;min-height:70px;max-height:120px;gap:10px}.dialogue .speaker{font-size:8px;letter-spacing:0}.dialogue-actions .primary{font-size:12px;padding:8px 10px}#english{font-size:19px}#chinese{font-size:12px}.scene-bottom{left:12px;right:12px;bottom:96px}.scene-bottom>span{display:none}.guess-panel{bottom:137px;max-width:calc(100% - 32px);padding:8px 12px}.guess-choice{padding:7px 10px}}
@media(max-width:600px){.brand{display:none}.topbar{flex-wrap:nowrap;gap:4px;padding:8px}.chapters{order:0;width:auto;justify-content:flex-start}.chapter,.chapter.active{font-size:12px;padding:8px}.chapter span{margin-right:3px}.utilities{margin-left:auto}.scene-heading{top:67px;left:14px;max-width:63%}.scene-heading h2{font-size:18px}.scene-kicker{font-size:8px}.progress-panel{top:65px;right:12px}.amy{width:90px;height:25dvh;left:5px;bottom:176px}.dialogue{left:10px;right:10px;bottom:10px;flex-wrap:wrap;max-height:162px;gap:5px 10px;padding:10px 12px}.dialogue .speaker{width:auto}.dialogue-copy{flex-basis:calc(100% - 90px)}#english{font-size:18px}#chinese{font-size:12px}.dialogue-actions{margin-top:4px;width:100%}.dialogue-actions .primary{width:100%;min-height:34px}.scene-bottom{bottom:168px}.view-controls{left:43%}.guess-panel{bottom:211px;max-width:calc(100% - 20px);gap:8px}.guess-choices{gap:5px}.guess-choice{font-size:12px;padding:6px 9px}.guess-title{display:none}.welcome-content{max-width:85%;margin-left:7%}.welcome-content h2{font-size:27px}.welcome-content p{font-size:14px}.welcome-note{font-size:11px}.welcome .primary{font-size:15px;min-height:44px}}
@media(max-height:520px) and (min-width:601px){.scene-heading{top:62px}.scene-heading h2{font-size:18px}.scene-kicker{display:none}.progress-panel{top:63px}.amy{height:43dvh;max-height:190px;bottom:90px}.scene-bottom{bottom:88px}.dialogue{min-height:62px;bottom:8px}.dialogue .speaker>span{display:none}#english{font-size:17px}#chinese{font-size:11px}.guess-panel{bottom:123px}.toast{top:26%;padding:8px 16px;font-size:12px}}
/* A nearby image silhouette marks the physical destination, without labels. */
.targets.visible .target{background:transparent!important;box-shadow:none!important;border-radius:0;min-height:52px;padding:8px;opacity:.42;filter:drop-shadow(0 0 6px #fff8c4);transition:opacity .15s,filter .15s}
.targets.visible .target .sprite{object-fit:contain;width:100%;height:100%;filter:sepia(.6) saturate(.5);opacity:.7}
.targets.visible .target:hover,.targets.visible .target.drag-over{opacity:.95;filter:drop-shadow(0 0 10px #fffbd5)}
.target[hidden],#actionBtn[hidden],#interactionHint:empty{display:none!important}
/* Teacher-approved Amy, larger and with aligned bitmap animation poses. */
.amy{--amy-size:clamp(280px,45dvh,440px);height:var(--amy-size);width:calc(var(--amy-size)*.62);max-height:none;left:14px;bottom:108px;animation:none;transform:none;z-index:6}
.amy-sprite{position:absolute;left:50%;top:0;width:var(--amy-size);height:var(--amy-size);transform:translateX(-50%);background-image:url('assets/amy-animation-atlas.png');background-size:calc(var(--amy-size)*3) calc(var(--amy-size)*2);background-repeat:no-repeat;pointer-events:none;filter:drop-shadow(0 3px 2px #43332830)}
.amy.speaking{animation:none}.amy-name{bottom:0;font-size:15px}.amy.in-scene .amy-name{display:none}
.item.selected,.item.question-focus{z-index:12}.item.question-focus{filter:drop-shadow(0 0 5px #fff4a6)!important}
.distance-modes{position:absolute;left:26px;top:190px;z-index:30;display:flex;gap:7px}.distance-modes[hidden]{display:none}.distance-modes button{background:#fff9e9e8;color:#245340;padding:9px 14px;font:16px Georgia,serif;border-radius:7px}.distance-modes button[aria-pressed='true']{background:#1b5949;color:white}.distance-modes button:hover{box-shadow:0 0 0 2px #efd094}
.dialogue{left:285px}.scene-bottom{justify-content:flex-end}.scene-bottom>span{margin-left:245px}.school-walker{--amy-size:52dvh;position:absolute;left:0;bottom:15%;width:calc(var(--amy-size)*.62);height:var(--amy-size);animation:walk 5.5s linear both}.school-walker .amy-sprite{animation:amy-walk-frames .36s steps(1,end) infinite}
@keyframes amy-walk-frames{0%,100%{background-position:calc(var(--amy-size)*-1.046875) calc(var(--amy-size)*-.974609375)}50%{background-position:calc(var(--amy-size)*-2) calc(var(--amy-size)*-.970703125)}}
@media(max-width:900px){.amy{--amy-size:clamp(225px,43dvh,360px);left:4px;bottom:96px}.dialogue{left:205px}.distance-modes{top:124px;left:16px}.distance-modes button{font-size:14px;padding:7px 10px}}
@media(max-width:600px){.amy{--amy-size:clamp(220px,32dvh,310px);left:2px;bottom:178px}.dialogue{left:10px}.distance-modes{top:128px;left:14px}.distance-modes button{font-size:14px;padding:8px 10px}.amy-name{font-size:12px}}
@media(max-height:520px) and (min-width:601px){.amy{--amy-size:clamp(190px,58dvh,280px);bottom:87px}.distance-modes{top:104px;left:16px}.distance-modes button{font-size:13px;padding:6px 9px}.dialogue{left:176px}}
.amy-pointer{display:none;position:absolute;left:50%;top:0;width:var(--amy-size);height:var(--amy-size);transform:translateX(-50%);overflow:visible;filter:drop-shadow(0 3px 2px #43332830)}
.amy[data-pose="3"] .amy-sprite{visibility:hidden}.amy[data-pose="3"] .amy-pointer{display:block}