:root{color-scheme:light;--teal:#09616b;--ink:#133d43;--cream:#f8fcfa;--shadow:0 16px 60px #092c3440}*{box-sizing:border-box}body{margin:0;font-family:"Segoe UI","Microsoft YaHei",sans-serif;color:var(--ink);background:#d5e7e5}button{font:inherit;cursor:pointer;border:0;transition:background .18s,transform .18s;touch-action:manipulation}button:hover{filter:brightness(1.06)}button:active{transform:scale(.98)}button:focus-visible{outline:3px solid #ffcd68;outline-offset:4px}button:disabled{opacity:.35;cursor:default}[hidden]{display:none!important}#app{height:100dvh;min-height:560px;overflow:hidden;position:relative}#panorama{width:100%;height:100%;display:block;touch-action:none;cursor:grab}#panorama:active{cursor:grabbing}.vignette{position:absolute;inset:0;pointer-events:none;background:linear-gradient(#063d4655,transparent 25%,transparent 62%,#002e3960)}header{position:absolute;top:24px;left:28px;right:28px;display:flex;align-items:center;justify-content:space-between;gap:15px;z-index:4}.brand{display:flex;align-items:center;gap:12px;border-radius:18px;background:#ffffffec;padding:12px 19px;color:var(--ink);box-shadow:0 4px 24px #063d4320;text-align:left;font-size:15px;font-weight:700;letter-spacing:2px}.brand small{display:block;letter-spacing:0;font-size:13px;font-weight:400;margin-top:3px}.brand-mark{display:grid;place-items:center;background:var(--teal);color:white;border-radius:11px;width:38px;height:38px;font-size:30px}.tools{display:flex;gap:7px}.tools button,.glass,.quiet{background:#ffffffdc;color:var(--ink);padding:12px 16px;border-radius:30px;box-shadow:0 3px 18px #063d4320}.tools button[aria-pressed=true]{background:#084e57;color:white}.entry{position:absolute;inset:105px 10% 45px;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:3;gap:14px}.entry-intro{text-align:center;color:white;text-shadow:0 2px 18px #062d42}.eyebrow{font-size:11px;font-weight:700;letter-spacing:3px}.entry h1{font-size:clamp(22px,2.6vw,36px);margin:8px 0}.entry p{margin:0;font-size:15px}.exercise{display:flex;align-items:center;justify-content:center;gap:24px;width:100%;min-height:0;flex:1;max-height:440px}.circle{border-radius:50%;background:#0e697fe8;color:white;border:1px solid #ffffffaa;width:52px;height:52px;flex:0 0 auto;box-shadow:0 4px 20px #002e4330;font-size:38px}.photo-button{position:relative;height:100%;width:min(800px,78vw);background:#ffffff;padding:9px;border-radius:16px;box-shadow:var(--shadow);overflow:hidden;min-height:140px}.photo-button img{height:100%;width:100%;object-fit:contain;background:#f4f3ed;display:block;border-radius:9px}.listen-badge{position:absolute;bottom:20px;right:22px;font-size:13px;background:#075965ed;color:white;border:1px solid #ffffffa8;border-radius:30px;padding:10px 16px;box-shadow:0 4px 18px #092c3425}.exercise-meta{display:flex;align-items:center;justify-content:center;gap:15px;min-height:34px;color:white;text-shadow:0 1px 5px #042b31}.exercise-meta button{padding:7px 16px;border-radius:20px;background:#ffffffeb;color:var(--ink)}#card-answer{font-size:21px;font-weight:600}.entry-actions{display:flex;gap:16px;align-items:center}.primary{background:linear-gradient(135deg,#167d83,#044952);color:white;padding:15px 29px;border:1px solid #d2f6ef;border-radius:32px;box-shadow:0 8px 24px #003d4340;min-width:150px;font-weight:600}.entry .primary{min-width:215px;font-size:18px}.primary span{margin-left:22px}#credit{position:absolute;left:24px;bottom:9px;font-size:10px;color:#fff9;pointer-events:none;z-index:3}body.in-entry .vignette{backdrop-filter:blur(5px);background:#063d4360}#hint{position:absolute;top:115px;left:50%;transform:translateX(-50%);border-radius:20px;background:#ffffffd6;padding:8px 17px;font-size:12px;pointer-events:none}#focus-tabs{position:absolute;top:155px;left:50%;transform:translateX(-50%);display:flex;gap:8px}#focus-tabs button{padding:9px 18px;border-radius:24px;background:#ffffffdd;color:var(--ink)}#hotspots{position:absolute;inset:0;pointer-events:none}.hotspot{position:absolute;left:0;top:0;pointer-events:auto;display:flex;align-items:center;gap:8px;color:#063d43;background:#fffffff0;border-radius:34px;padding:6px 13px 6px 6px;box-shadow:0 5px 24px #001f4040;white-space:nowrap;border:1px solid #fff;transform:translate(-50%,-50%);font-size:14px;font-weight:600}.hotspot img{width:42px;height:42px;object-fit:cover;border-radius:50%;border:2px solid white}.hotspot .sound-dot{font-size:18px;color:var(--teal);margin-left:3px}#quick-items{position:absolute;bottom:104px;left:50%;transform:translateX(-50%);display:flex;gap:7px;max-width:92vw;overflow-x:auto;padding:8px}#quick-items button{background:#ffffffe8;border-radius:20px;padding:10px 16px;color:#16474c;white-space:nowrap;font-size:13px;box-shadow:0 4px 12px #00353e20}.bottom-nav{position:absolute;bottom:36px;left:28px;right:28px;display:flex;justify-content:space-between;align-items:center;gap:12px}.scene-dots{display:flex;align-items:center;gap:7px;background:#ffffffd9;padding:7px;border-radius:32px}.scene-dots button{width:38px;height:38px;border-radius:50%;color:var(--teal);background:transparent;font-size:18px}.scene-dots button.active{background:var(--teal);color:white}.scene-dots span{display:none}#subtitle{position:absolute;bottom:166px;left:50%;transform:translateX(-50%);max-width:90%;padding:12px 23px;background:#092c40e8;color:white;border-radius:14px;font-size:22px;text-align:center;z-index:12;pointer-events:none}#toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);padding:12px 21px;background:#102f3aee;color:white;border-radius:18px;z-index:30;opacity:0;pointer-events:none;transition:opacity .2s}#toast.show{opacity:1}#loading{position:absolute;inset:0;display:flex;justify-content:center;align-items:center;gap:15px;background:#e8f5ec;z-index:20;font-size:18px}#loading span{width:24px;height:24px;border:3px solid #b5d9d4;border-top-color:#08626a;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}dialog{border:0;border-radius:22px;padding:22px;background:#fbfdfa;box-shadow:var(--shadow);color:var(--ink);max-width:min(94vw,1080px);max-height:92dvh;overflow:auto}dialog::backdrop{background:#062631af;backdrop-filter:blur(5px)}.dialog-head{display:flex;align-items:center;justify-content:space-between;gap:30px;margin-bottom:14px}.dialog-head h2{margin:4px 0;font-size:23px}.small{width:38px;height:38px;font-size:28px;background:#e2eeeb;color:#15484e;box-shadow:none;border:0}.detail-photo{position:relative;display:block;padding:0;background:#eaf0ea;width:100%;border-radius:12px;overflow:hidden}.detail-photo img{display:block;width:100%;height:min(54dvh,580px);object-fit:contain}#detail-lines{display:flex;flex-wrap:wrap;gap:9px;margin-top:14px}#detail-lines button,.run-actions button,.end-copy>button:not(.primary){background:#e7f2ef;color:#115961;border-radius:18px;padding:12px 17px}#detail-caption{font-size:20px;margin:14px 0 0}#run-controls{margin-top:13px}.run-stage{width:min(960px,85vw);background:#b2d5d6;border-radius:12px;overflow:hidden}.run-stage canvas{display:block;width:100%;height:auto}.run-actions{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}.micro{font-size:12px;line-height:1.7;color:#687c7b}#end-dialog{padding:0;width:min(1020px,94vw)}.close-corner{position:absolute;right:15px;top:15px;z-index:1}.end-visual{height:240px;background:url('assets/photos/gate.jpg') center 55% / cover}.end-copy{padding:26px 32px;display:flex;flex-direction:column;gap:10px}.end-copy h2{margin:4px 0}.end-copy p{margin:0 0 6px}.end-copy button{text-align:left}.end-copy .primary{text-align:center;margin-top:8px}#help-dialog{max-width:660px}#help-dialog li{line-height:1.8;margin-bottom:8px}#fallback{position:absolute;inset:0;display:grid;place-content:center;background:#e4f0ec}.reduce *{transition:none!important;animation:none!important}body.in-entry #hotspots{display:none}@media(max-width:700px){header{top:12px;left:12px;right:12px;align-items:flex-start}.brand{padding:9px;font-size:11px;gap:7px}.brand small{font-size:10px}.brand-mark{width:30px;height:30px;font-size:22px}.tools{gap:4px;flex-wrap:wrap;justify-content:flex-end;max-width:200px}.tools button{padding:9px;font-size:11px}.entry{inset:110px 3% 35px;gap:12px}.entry h1{font-size:23px}.exercise{gap:8px;max-height:48vh}.circle{width:36px;height:36px;font-size:29px}.photo-button{padding:5px;width:74vw}.listen-badge{font-size:11px;padding:7px 10px;right:12px;bottom:12px}.entry-actions{flex-direction:column;gap:9px}.entry .primary{padding:12px 28px}.quiet{padding:9px 15px;font-size:13px}.bottom-nav{left:12px;right:12px;bottom:30px;gap:7px}.bottom-nav>.primary,.bottom-nav>.glass{min-width:0;padding:12px;font-size:12px}.scene-dots{gap:1px;padding:4px}.scene-dots button{width:30px;height:30px;font-size:14px}#quick-items{bottom:89px;width:95%;justify-content:flex-start}#quick-items button{font-size:12px}#hint{top:112px;white-space:nowrap;font-size:11px}#focus-tabs{top:148px}#focus-tabs button{font-size:12px;padding:8px 12px}#credit{font-size:8px;left:12px}dialog{padding:15px}.dialog-head h2{font-size:19px}.detail-photo img{height:45vh}.end-copy{padding:22px}.end-visual{height:170px}}@media(max-height:650px) and (min-width:701px){header{top:12px}.entry{inset:86px 10% 30px;gap:8px}.entry h1{font-size:24px}.entry-intro p{font-size:12px}.entry-actions button{padding:10px 22px}.entry .exercise{max-height:300px}.exercise-meta{min-height:28px}.entry-intro .eyebrow{display:none}}