*{margin:0;padding:0;box-sizing:border-box}body{font-family:Quicksand,sans-serif;background:linear-gradient(145deg,#b8e1d0,#d0e8d5);min-height:100vh;display:flex;align-items:center;justify-content:center;padding:15px;position:relative;overflow:hidden}.nature-bg{position:fixed;top:0;left:0;width:100%;height:100%;z-index:0;pointer-events:none}.cloud{background:#fffffab3;border-radius:60% 40% 50% 30%;filter:drop-shadow(0 10px 10px #c1e0d2);position:absolute}.cloud1{width:200px;height:80px;top:50px;left:5%;animation:cloudDrift 20s ease-in-out infinite}.cloud2{width:260px;height:95px;bottom:90px;right:3%;animation:cloudDrift 25s ease-in-out infinite reverse}.sun{width:110px;height:110px;background:#f9f3b0;border-radius:50%;box-shadow:0 0 50px #fde876;position:absolute;top:20px;right:40px;animation:sunPulse 4s ease-in-out infinite}@keyframes cloudDrift{0%,to{transform:translate(0)}50%{transform:translate(30px)}}@keyframes sunPulse{0%,to{box-shadow:0 0 50px #fde876}50%{box-shadow:0 0 80px #fde04a}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes pop{0%{transform:scale(.8);opacity:0}50%{transform:scale(1.05)}to{transform:scale(1);opacity:1}}.cp{position:fixed;pointer-events:none;z-index:9999;animation:fall linear forwards}@keyframes fall{0%{transform:translateY(-60px) rotate(0);opacity:1}to{transform:translateY(100vh) rotate(540deg);opacity:0}}.lesson-card{position:relative;z-index:20;background:#ffffffb8;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:60px;border:3px solid #e7f9e7;box-shadow:0 25px 60px -5px #2f5e4e55,0 0 0 2px #fffc inset;display:flex;height:94vh;overflow:visible;width:1300px;max-width:90vw}.family-sidebar{width:310px;flex-shrink:0;background:#bfd9cf;background-image:radial-gradient(circle at 10px 10px,#a2c5b5 2px,transparent 2px),linear-gradient(145deg,#b8d5c5,#aacbbd);border-radius:50px 0 30px 50px;border:2px solid #f1f9f0;box-shadow:8px 10px 20px #557a6b,inset -2px -2px 10px #e2f0e8;color:#1f4a3a;padding:35px 12px;height:100%;min-height:600px;display:flex;flex-direction:column;align-items:center;gap:25px;overflow-y:auto;flex:0 0 310px}.sidebar-logo{text-align:center;margin-bottom:6px}.sidebar-emoji{font-size:2.5rem;display:block;filter:drop-shadow(2px 6px 6px #3d6d5a);animation:gentleBob 3s ease-in-out infinite}@keyframes gentleBob{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}.sidebar-logo h3{font-size:1.1rem;font-weight:700;color:#0c3f2b;margin-top:6px;line-height:1.3}.sidebar-logo p{font-size:.85rem;color:#3a6e56;font-weight:600}.btn-side{background:#f5efe0;border:2px solid #c6e2d0;border-radius:100px 30px;box-shadow:0 6px #749984,0 12px 20px #4d6b5e;color:#1b4635;font-weight:700;font-size:1.2rem;padding:16px 20px;width:100%;cursor:pointer;transition:all .1s;letter-spacing:1px;display:flex;align-items:center;justify-content:center;gap:10px;text-align:center}.btn-side:hover{background:#fcf9ed;transform:translateY(-4px);box-shadow:0 10px #5e8b78,0 18px 26px #345b4b}.btn-side:active{transform:translateY(4px);box-shadow:0 2px #5e8b78}.btn-side.active{background:#2e7d5e;color:#fff;border-color:#1a5a3e;box-shadow:0 6px #1a5a3e,0 12px 20px #0d3826}.btn-side.done{background:#d4f0e0;color:#1a5a3e;border-color:#90c9a9}.btn-side .snum{background:#2e7d5e26;border-radius:50%;width:26px;height:26px;display:flex;align-items:center;justify-content:center;font-size:.85rem;flex-shrink:0}.btn-side.active .snum{background:#ffffff4d}.sb-footer{margin-top:auto;padding-top:10px;text-align:center;font-size:.82rem;color:#0c3f2b;font-weight:700}.main-stage{flex:1;overflow-y:auto;overflow-x:hidden;background:#fafff58c;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);border-radius:0 30px 30px 0;padding:30px 30px 30px 40px;box-shadow:inset 0 0 40px #e7ffe7,0 20px 25px #4a7b67;border-left:2px solid #d6f0da;min-height:0;display:block}.main-stage::-webkit-scrollbar{width:6px}.main-stage::-webkit-scrollbar-thumb{background:#90c9a9;border-radius:99px}.page{display:none;width:100%;max-width:100%;min-width:0;padding-bottom:30px}.page.active-page{display:block;animation:softAppear .4s ease}@keyframes softAppear{0%{opacity:.4;transform:scale(.98) translateY(8px)}to{opacity:1;transform:scale(1) translateY(0)}}.page-title{font-size:3rem;font-weight:700;color:#1a6240;text-shadow:2px 2px 0 #c8f0d5,5px 5px 15px #347d5a;animation:gentleBounce 1s ease;display:flex;align-items:center;gap:12px;margin-bottom:6px}@keyframes gentleBounce{0%{transform:translateY(-10px) scale(.95);opacity:0}70%{transform:translateY(3px)}to{transform:translateY(0);opacity:1}}.icon-badge{background:linear-gradient(135deg,#2e7d5e,#57a87a);border-radius:18px;width:52px;height:52px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.4rem;box-shadow:0 4px 12px #2e7d5e44;flex-shrink:0}.page-sub{color:#3a7a58;font-size:1rem;font-weight:600;margin-bottom:18px}.hint-box{background:linear-gradient(135deg,#e8f6f0,#e8fff4);border:2px solid #90d9b5;border-radius:20px;padding:14px 20px;font-size:1rem;font-weight:600;color:#1a6240;display:flex;align-items:center;gap:8px;margin-bottom:18px}.pic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:20px}.pic-card{background:#f1ffe7;border-radius:30px 10px;border:3px solid #71a587;box-shadow:5px 5px #317555;padding:20px 14px 16px;text-align:center;cursor:pointer;transition:all .2s}.pic-card:hover{transform:translateY(-4px);box-shadow:8px 10px #2a6b4a;border-color:#2e7d5e}.pic-card.selected{background:#d4f0e0;border-color:#2e7d5e;box-shadow:0 0 0 3px #90d9b555,8px 8px #1a5a3e}.pic-card img{width:100%;border-radius:16px;margin-bottom:10px;object-fit:cover;max-height:230px;display:block}.pc-emoji{font-size:3.5rem;display:block;margin-bottom:10px}.pc-label{font-size:1.1rem;color:#1a6240;font-weight:700}.pc-desc{margin-top:10px;background:#e3f2e0;border-radius:12px;padding:8px 10px;font-size:.85rem;font-weight:600;color:#2a5a3a;display:none;line-height:1.5}.pic-card.selected .pc-desc{display:block}.vocab-bank{background:linear-gradient(135deg,#f1ffe7,#e3f8ec);border-radius:30px 10px;border:4px solid #4c8b70;padding:20px 22px;margin-bottom:20px;text-align:center;box-shadow:8px 8px #2e6b51}.vocab-hint{font-size:1rem;font-weight:700;color:#1a6240;margin-bottom:12px;display:flex;align-items:center;justify-content:center;gap:6px}.word-chip{display:inline-block;background:#c7e6d4;border:2px solid #9cc2ad;border-radius:50px 10px;padding:8px 20px;font-size:1.3rem;font-weight:800;color:#1b4635;margin:6px;cursor:pointer;box-shadow:0 5px #4f8b70;transition:all .15s;-webkit-user-select:none;user-select:none}.word-chip:hover{transform:translateY(-3px);box-shadow:0 8px #3d765d}.word-chip.chip-selected{background:#2e7d5e;color:#fff;border-color:#1a5a3e;transform:translateY(-4px) scale(1.06);box-shadow:0 8px #1a5a3e,0 0 0 3px #90d9b577}.word-chip.chip-used{opacity:.38;cursor:default;transform:none;box-shadow:0 2px #4f8b70}.match-sent{background:#ffffffb3;border-radius:20px 6px;border:2px solid #d4f0e0;padding:14px 20px;margin-bottom:10px;font-size:1.2rem;font-weight:600;color:#1a3d2a;display:flex;align-items:center;flex-wrap:wrap;gap:8px;box-shadow:4px 4px #90c9a933}.drop-zone{display:inline-block;min-width:140px;background:#fcfef7;border:3px dashed #3e7d62;border-radius:30px 5px;padding:6px 18px;font-size:1.1rem;font-weight:700;color:#2a7a55;margin:4px;text-align:center;transition:all .2s;vertical-align:middle;cursor:pointer}.drop-zone:hover{background:#d4f0e0;border-color:#2e7d5e}.drop-zone.ready{border-color:#57a87a;background:#e3f8ec;animation:pulseg 1s ease-in-out infinite}@keyframes pulseg{0%,to{box-shadow:0 0 #57a87a44}50%{box-shadow:0 0 0 6px #57a87a00}}.drop-zone.filled{border-style:solid;border-color:#2e7d5e;background:#d4f0e0;color:#1a5a3e;cursor:default}.drop-zone.wrong-drop{border-color:#d05050;background:#ffe4e4;color:#c0392b;animation:shake .35s ease}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-6px)}75%{transform:translate(6px)}}.ctick{font-size:1.3rem;margin-left:6px;display:inline-block;animation:pop .3s ease}.reading-card{background:#ffffffb8;border-radius:40px 15px;border:3px solid #90c9a9;box-shadow:8px 8px #4f8b7066;padding:22px 28px;margin-bottom:20px;font-size:1.1rem;line-height:1.85;color:#1a3d2a}.reading-card .para-label{font-size:1.1rem;font-weight:700;color:#1a6240;margin-bottom:10px}.rq-progress{display:flex;align-items:center;gap:10px;margin-bottom:16px}.rq-bar{flex:1;height:12px;background:#d4f0e0;border-radius:99px;overflow:hidden;border:2px solid #90c9a9}.rq-bar-fill{height:100%;background:linear-gradient(90deg,#2e7d5e,#57a87a);border-radius:99px;transition:width .4s ease}.rq-counter{font-size:.95rem;font-weight:800;color:#3a7a58;white-space:nowrap}.rq-card{background:#ffffffb3;border-radius:30px 10px;border:3px solid #90c9a9;padding:22px 26px;box-shadow:6px 6px #4f8b7044;animation:softAppear .3s ease}.rq-question{font-size:1.2rem;font-weight:800;color:#1a4a30;margin-bottom:18px;display:flex;align-items:flex-start;gap:8px}.rq-question .q-num{background:linear-gradient(135deg,#2e7d5e,#57a87a);color:#fff;border-radius:12px;padding:3px 12px;font-size:.9rem;flex-shrink:0;margin-top:2px}.rq-options{display:flex;flex-direction:column;gap:10px}.rq-opt{background:#f1ffe7;border:2px solid #90c9a9;border-radius:20px 6px;padding:12px 20px;font-family:Quicksand,sans-serif;font-size:1.1rem;font-weight:700;color:#1a6240;cursor:pointer;text-align:left;transition:all .15s;display:flex;align-items:center;gap:10px}.rq-opt:hover{background:#d4f0e0;border-color:#2e7d5e;transform:translate(4px)}.rq-opt.opt-correct{background:#f1ffe7!important;border-color:#2e7d5e!important;color:#1a6240!important;cursor:default}.rq-opt.opt-wrong{background:#ffe4e4;border-color:#d05050;color:#c0392b;cursor:default;animation:shake .35s ease}.rq-opt .opt-icon{width:26px;height:26px;border-radius:50%;border:2px solid currentColor;display:flex;align-items:center;justify-content:center;font-size:.85rem;flex-shrink:0}.rq-feedback{margin-top:14px;padding:12px 18px;border-radius:14px;font-weight:700;font-size:1rem;display:none;align-items:center;gap:8px}.rq-feedback.show{display:flex}.rq-feedback.fb-ok{background:#d4f0e0;color:#1a5a3e;border:2px solid #2e7d5e}.rq-feedback.fb-no{background:#ffe4e4;color:#c0392b;border:2px solid #d05050}.rq-done{background:linear-gradient(135deg,#d4f0e0,#b8e0cc);border:3px solid #2e7d5e;border-radius:30px 10px;padding:22px 28px;text-align:center;font-size:1.4rem;font-weight:700;color:#1a5a3e;display:none;animation:pop .4s ease;margin-top:4px;box-shadow:8px 8px #1a5a3e44}.rq-score{font-size:1.1rem;font-weight:700;color:#2e7d5e;margin-top:8px}.qa-wrap{background:#ffffffb8;border-radius:30px 10px;border:3px solid #90c9a9;padding:22px;box-shadow:6px 6px #4f8b7044;margin-bottom:18px}.qa-row{display:flex;align-items:center;gap:14px;padding:12px 0;border-bottom:2px dashed #d4f0e0;flex-wrap:wrap}.qa-row:last-child{border-bottom:none}.qa-label{font-size:1.05rem;font-weight:700;color:#1a4a30;min-width:240px;display:flex;align-items:center;gap:8px}.qa-icon{width:32px;height:32px;background:linear-gradient(135deg,#2e7d5e,#57a87a);border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:.85rem;flex-shrink:0}.qa-input{flex:1;border:2px solid #90c9a9;border-radius:30px;padding:10px 22px;font-family:Quicksand,sans-serif;font-size:1.05rem;font-weight:600;color:#1a3d2a;outline:none;background:#f1ffe7;min-width:200px;transition:all .2s}.qa-input:focus{border-color:#2e7d5e;background:#fff;box-shadow:0 0 0 3px #90d9b544}.qa-input::placeholder{color:#7aaa8a}.ai-para-wrap{margin-top:20px}.ai-para-label{font-size:1.1rem;font-weight:700;color:#1a6240;margin-bottom:10px;display:flex;align-items:center;gap:8px}.ai-badge{display:inline-flex;align-items:center;gap:5px;background:linear-gradient(135deg,#2e7d5e,#57a87a);color:#fff;border-radius:30px;padding:4px 16px;font-size:.82rem;font-weight:800}.ai-para-box{background:linear-gradient(135deg,#f1ffe7,#e3f8ec);border-radius:30px 10px;border:3px solid #90c9a9;padding:22px 28px;font-size:1.1rem;font-weight:700;color:#1a3d2a;line-height:1.9;min-height:90px;box-shadow:8px 8px #4f8b7044}.quiz-soft{background:#e4f2e9;border-radius:40px 10px;border:4px solid #2e7d5e;padding:20px;margin-top:16px;box-shadow:10px 10px #256b4e}.quiz-soft .q-row{margin-bottom:12px;font-weight:700;color:#1a4a30;font-size:1.1rem}.btn-choice{background:#f1ffe7;border:2px solid #90c9a9;border-radius:30px;color:#1a6240;font-family:Quicksand,sans-serif;font-size:1rem;font-weight:700;padding:8px 22px;cursor:pointer;margin:0 4px;transition:all .15s;box-shadow:0 4px #71a587}.btn-choice:hover{background:#d4f0e0;border-color:#2e7d5e;transform:translateY(-2px)}.btn-choice.correct{background:#f1ffe7!important;border-color:#2e7d5e!important;color:#1a6240!important;box-shadow:0 4px #71a587!important}.btn-choice.wrong{background:#ffe4e4;border-color:#d05050;color:#c0392b}.btn-soft-next{background:#b4dfc5;border:none;font-size:1.5rem;font-weight:700;padding:12px 40px;border-radius:120px 20px;box-shadow:0 8px #468a68,0 10px 20px #1f543d;color:#1b4a30;cursor:pointer;transition:all .1s;display:inline-flex;align-items:center;gap:8px}.btn-soft-next:hover{background:#c8ecd5;transform:translateY(-4px);box-shadow:0 12px #3a7a58,0 16px 24px #1f543d}.btn-soft-next:active{transform:translateY(4px);box-shadow:0 4px #468a68}.btn-soft-back{background:#d4f0e0;border:none;font-size:1.3rem;font-weight:700;padding:10px 30px;border-radius:20px 120px;box-shadow:0 6px #4f8b70,0 10px 20px #2e6b5144;color:#1b4a30;cursor:pointer;transition:all .1s;display:inline-flex;align-items:center;gap:8px}.btn-soft-back:hover{transform:translateY(-3px)}.btn-soft-back:active{transform:translateY(3px)}.flex-end{display:flex;justify-content:flex-end;margin-top:20px}.flex-btw{display:flex;justify-content:space-between;align-items:center;margin-top:24px;flex-wrap:wrap;gap:10px;padding-bottom:10px}.sb-rules-wrap{display:flex;gap:14px;margin-bottom:20px;flex-wrap:wrap}.sb-rule-card{flex:1;min-width:220px;background:linear-gradient(135deg,#f1ffe7,#e3f8ec);border-radius:24px 8px;border:3px solid #90c9a9;padding:18px 20px;box-shadow:6px 6px #4f8b7044}.sb-rule-label{font-size:1.05rem;font-weight:800;color:#1a4a30;margin-bottom:8px}.sb-rule-desc{font-size:.95rem;font-weight:600;color:#3a6a50;margin-bottom:8px;line-height:1.5}.sb-rule-eg{font-size:.9rem;font-style:italic;color:#2e7d5e;background:#2e7d5e1a;border-radius:10px;padding:6px 12px}.sb-score-banner{background:linear-gradient(135deg,#d4f0e0,#b8e0cc);border:3px solid #2e7d5e;border-radius:30px 10px;padding:20px 26px;text-align:center;font-size:1.3rem;font-weight:800;color:#1a5a3e;box-shadow:8px 8px #1a5a3e44;margin-top:8px;display:none;animation:pop .4s ease}.sb-step-card{background:#ffffffe0;border-radius:24px;border:2px solid #d4f0e0;box-shadow:4px 4px #90c9a933;overflow:hidden;margin-bottom:14px;animation:softAppear .35s ease}.sb-sent-row{background:#ffffffbf;border-radius:20px 6px;border:2px solid #d4f0e0;padding:16px 22px;font-size:1.15rem;font-weight:600;color:#1a3d2a;display:flex;align-items:center;flex-wrap:wrap;gap:8px;box-shadow:4px 4px #90c9a933;transition:border-color .2s}.sb-sent-row.sb-correct{border-color:#2e7d5e;background:#e8f9ef}.sb-sent-row.sb-wrong{border-color:#d05050;background:#fff0f0;animation:shake .35s ease}.sb-opts-group{display:inline-flex;gap:8px;flex-wrap:wrap}.sb-opt-btn{background:#f1ffe7;border:2px solid #90c9a9;border-radius:30px 8px;color:#1a6240;font-family:Quicksand,sans-serif;font-size:1.05rem;font-weight:800;padding:7px 22px;cursor:pointer;box-shadow:0 5px #71a587;transition:all .15s}.sb-opt-btn:hover:not(:disabled){background:#d4f0e0;border-color:#2e7d5e;transform:translateY(-3px);box-shadow:0 8px #3d765d}.sb-opt-btn:disabled{cursor:default}.sb-opt-btn.sb-btn-correct,.sb-opt-btn.sb-btn-correct:disabled{background:#f1ffe7;border-color:#2e7d5e;color:#1a6240;box-shadow:0 5px #71a587;transform:translateY(0)}.sb-opt-btn.sb-btn-wrong{background:#ffe4e4;border-color:#d05050;color:#c0392b;box-shadow:0 3px #8b0000}.ls-outer{display:flex;flex-direction:column;gap:14px}.ls-top-bar{display:flex;align-items:center;gap:14px}.ls-hint-bar{flex:1;background:linear-gradient(135deg,#e8f6f0,#e8fff4);border:2px solid #90d9b5;border-radius:18px;padding:13px 20px;font-size:.98rem;font-weight:600;color:#1a6240;display:flex;align-items:center;gap:10px}.ls-play-btn{flex-shrink:0;background:linear-gradient(135deg,#2e7d5e,#1a5a3e);color:#fff;border:none;border-radius:14px;padding:13px 28px;font-family:Nunito,sans-serif;font-size:1rem;font-weight:800;cursor:pointer;box-shadow:0 5px #0d3826,0 8px 20px #2e7d5e59;display:flex;align-items:center;gap:9px;transition:all .15s;white-space:nowrap}.ls-play-btn:hover{transform:translateY(-2px);box-shadow:0 8px #0d3826,0 12px 24px #2e7d5e66}.ls-play-btn:active{transform:translateY(3px);box-shadow:0 2px #0d3826}.ls-play-btn.ls-playing{background:linear-gradient(135deg,#c0392b,#e74c3c);box-shadow:0 5px #8b0000,0 8px 20px #c0392b4d}.ls-content-row{display:flex;gap:16px;align-items:flex-start}.ls-bubbles-col{flex:1;display:flex;flex-direction:column;gap:6px;min-height:260px}.ls-img-col{flex-shrink:0;width:190px}.ls-img-box{width:100%;height:260px;border-radius:20px;overflow:hidden;border:3px solid #c8e8d4;box-shadow:6px 6px #4f8b7044;background:#e0f2e9}.ls-img-box img{width:100%;height:100%;object-fit:cover;object-position:center;display:block}.ls-bubble-item{display:flex;flex-direction:column;max-width:80%;opacity:0;transform:translateY(10px);transition:opacity .35s ease,transform .35s ease}.ls-bubble-item.ls-visible{opacity:1;transform:translateY(0)}.ls-bubble-item.ls-right{align-self:flex-end;align-items:flex-end}.ls-speaker-tag{display:flex;align-items:center;gap:5px;font-size:.72rem;font-weight:800;letter-spacing:.5px;margin-bottom:3px;padding:0 4px}.ls-speaker-tag .ls-spk-emoji{font-size:.9rem}.ls-bubble-item:not(.ls-right) .ls-speaker-tag{color:#2e7d5e}.ls-bubble-item.ls-right .ls-speaker-tag{color:#b8860b}.ls-speech{display:flex;align-items:center;gap:10px;padding:11px 18px;border-radius:16px;font-family:Nunito,sans-serif;font-size:.96rem;font-weight:700;line-height:1.4;cursor:pointer;transition:all .2s;position:relative}.ls-bubble-item:not(.ls-right) .ls-speech{background:linear-gradient(135deg,#d8f0e2,#c0e8d0);color:#1a3d2a;border:2px solid #90c9a9;border-bottom-left-radius:4px}.ls-bubble-item.ls-right .ls-speech{background:linear-gradient(135deg,#fff4cc,#fde882);color:#3a2a00;border:2px solid #e8c840;border-bottom-right-radius:4px}.ls-speech:hover{transform:scale(1.02)}.ls-speech.ls-speaking{box-shadow:0 0 0 3px #2e7d5e66;transform:scale(1.03)}.ls-bubble-item.ls-right .ls-speech.ls-speaking{box-shadow:0 0 0 3px #e8c84077}.ls-spk-icon{font-size:.85rem;opacity:.6;flex-shrink:0}.ls-quiz-wrap{background:#e4f2e9;border-radius:28px 10px;border:4px solid #2e7d5e;padding:18px 22px;box-shadow:8px 8px #256b4e}.ls-quiz-title{font-size:1rem;font-weight:800;color:#1a4a30;margin-bottom:12px;display:flex;align-items:center;gap:8px}.ls-q-row{margin-bottom:12px;font-weight:700;color:#1a4a30;font-size:.98rem}.ls-q-text{margin-bottom:7px;display:flex;align-items:center;gap:6px;flex-wrap:wrap}.ls-q-btns{display:flex;flex-wrap:wrap;gap:8px}.ls-choice-btn{background:#f1ffe7;border:2px solid #90c9a9;border-radius:30px;color:#1a6240;font-family:Quicksand,sans-serif;font-size:.95rem;font-weight:700;padding:7px 20px;cursor:pointer;transition:all .15s;box-shadow:0 4px #71a587}.ls-choice-btn:hover{background:#d4f0e0;border-color:#2e7d5e;transform:translateY(-2px)}.ls-choice-btn.ls-correct{background:#d4f0e0!important;border-color:#2e7d5e!important;color:#1a5a3e!important;cursor:default;box-shadow:0 4px #2e7d5e!important}.ls-choice-btn.ls-wrong{background:#ffe4e4;border-color:#d05050;color:#c0392b;box-shadow:0 2px #8b0000;animation:shake .35s ease}.ls-q-tick{font-size:1.1rem;margin-left:4px}.ls-complete-banner{background:linear-gradient(135deg,#d4f0e0,#b2e8cc);border:3px solid #2e7d5e;border-radius:20px;padding:16px 22px;text-align:center;font-family:Nunito,sans-serif;font-size:1.15rem;font-weight:800;color:#1a5a3e;box-shadow:0 5px #1a5a3e44;display:none;animation:pop .4s ease}.ls-scene{position:relative;width:100%;border-radius:24px;overflow:hidden;background:linear-gradient(180deg,#b2dfdb,#a5d6a7,#c8e6c9,#dcedc8,#f1f8e9);min-height:340px;display:flex;align-items:center;justify-content:center;margin-bottom:0;padding:30px 24px}.ls-cloud{position:absolute;border-radius:100px;opacity:.18;background:linear-gradient(90deg,transparent,#a5d6a7,transparent);pointer-events:none}.ls-cloud1{width:60%;height:18px;top:18%;left:-5%;transform:rotate(-3deg)}.ls-cloud2{width:45%;height:12px;top:32%;right:0;transform:rotate(-2deg);opacity:.12}.ls-cloud3{width:65%;height:16px;top:52%;left:-8%;transform:rotate(-1deg);opacity:.1}.ls-lyrics-block{text-align:center;position:relative;z-index:2;width:100%}.ls-lyric-line{display:block;font-family:Quicksand,sans-serif;font-size:clamp(1rem,2vw,1.55rem);font-weight:800;letter-spacing:1px;line-height:1.6;color:#00000038;text-shadow:none;transition:color .35s ease,text-shadow .35s ease,transform .35s ease;transform:scale(.97)}.ls-lyric-line.tr-active{color:#0c3f2b;text-shadow:2px 2px 0 rgba(255,255,255,.6);transform:scale(1.05)}.ls-player-bar{background:linear-gradient(135deg,#a5d6a7,#c8e6c9);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-radius:0 0 24px 24px;padding:12px 22px 14px;display:flex;flex-direction:column;gap:8px;border-top:1px solid rgba(255,255,255,.4);margin-bottom:16px}.ls-bar-top{display:flex;align-items:center;gap:14px}.ls-art{width:44px;height:44px;border-radius:10px;background:linear-gradient(135deg,#2e7d5e,#57a87a);display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0;animation:spin 8s linear infinite paused}.ls-art.playing{animation-play-state:running}.ls-info{flex:1}.ls-title{font-size:1rem;font-weight:800;color:#1a4a30;letter-spacing:1px}.ls-play{width:44px;height:44px;border-radius:50%;border:none;background:#2e7d5e;color:#fff;font-size:1rem;display:flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;box-shadow:0 4px #1a5a3e;transition:all .15s}.ls-play:hover{background:#256b4e;transform:scale(1.08)}.ls-prog-row{display:flex;align-items:center;gap:8px}.ls-time{font-size:.68rem;font-weight:700;color:#1a4a30;width:32px;text-align:center;font-variant-numeric:tabular-nums}.ls-track{flex:1;height:6px;background:#00000026;border-radius:99px;cursor:pointer}.ls-fill{height:100%;background:linear-gradient(90deg,#43a047,#a5d6a7);border-radius:99px;width:0%;transition:width .3s linear;pointer-events:none}.clock-progress{margin-bottom:20px}.clock-progress-bar{height:12px;background:#d4f0e0;border-radius:99px;overflow:hidden;border:2px solid #90c9a9;margin-bottom:8px}.clock-progress-fill{height:100%;background:linear-gradient(90deg,#2e7d5e,#57a87a);border-radius:99px;transition:width .4s ease;width:0%}.clock-progress-text{font-size:.85rem;font-weight:700;color:#3a7a58;text-align:center}.clocks-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px;margin-bottom:25px}.clock-card{background:#ffffffbf;border-radius:24px;padding:20px;text-align:center;border:3px solid #90c9a9;transition:all .2s}.clock-card.clock-correct{border-color:#2e7d5e;background:#e8f9ef}.clock-face{display:flex;justify-content:center;margin-bottom:15px}.clock-options{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin:12px 0 8px}.clock-opt-btn{background:#f1ffe7;border:2px solid #90c9a9;border-radius:30px;padding:6px 16px;font-family:Quicksand,sans-serif;font-size:.9rem;font-weight:700;color:#1a6240;cursor:pointer;transition:all .15s;box-shadow:0 3px #71a587}.clock-opt-btn:hover:not(:disabled){background:#d4f0e0;border-color:#2e7d5e;transform:translateY(-2px);box-shadow:0 5px #3d765d}.clock-opt-btn:disabled{opacity:.7;cursor:default}.clock-opt-btn.clock-wrong{background:#ffe4e4;border-color:#d05050;color:#c0392b;animation:shake .35s ease}.clock-tick{font-size:1.3rem;margin-left:8px;display:inline-block;animation:pop .3s ease}.clock-final-banner{background:linear-gradient(135deg,#d4f0e0,#b8e0cc);border:3px solid #2e7d5e;border-radius:30px;padding:25px;text-align:center;margin-top:20px;animation:pop .4s ease}.clock-final-content{font-size:1.3rem;font-weight:800;color:#1a5a3e}.clock-final-score{font-size:1rem;margin-top:8px;color:#2e7d5e}.lc-outer{border-radius:30px 10px;overflow:hidden;border:3px solid #90c9a9;box-shadow:8px 8px #4f8b7066;margin-bottom:20px;background:#f0fff6}.lc-stage{position:relative}.lc-img-wrap{position:relative;width:100%;height:340px;overflow:hidden}.lc-img{width:100%;height:100%;object-fit:cover;display:block;opacity:0;transition:opacity .6s ease}.lc-start-screen{position:absolute;top:0;right:0;bottom:0;left:0;background:#0f3c28d1;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:10}.lc-play-btn{background:#2e7d5e;border:3px solid rgba(255,255,255,.3);border-radius:999px;color:#fff;font-family:Quicksand,sans-serif;font-size:1.3rem;font-weight:800;padding:16px 44px;cursor:pointer;box-shadow:0 8px #1a5a3e,0 12px 30px #0006;transition:all .15s;display:flex;align-items:center;gap:10px}.lc-play-btn:hover{background:#57a87a;transform:translateY(-4px);box-shadow:0 12px #1a5a3e,0 18px 36px #00000080}.lc-audio-bar{display:flex;align-items:center;gap:16px;background:#1a4a30;padding:14px 22px;flex-wrap:wrap}.lc-wave{display:flex;align-items:center;gap:3px;flex-shrink:0}.lc-wave span{display:block;width:4px;background:#57a87a;border-radius:99px;height:8px;transition:height .2s}.lc-wave.playing span:nth-child(1){animation:waveBar .8s ease-in-out infinite 0s}.lc-wave.playing span:nth-child(2){animation:waveBar .8s ease-in-out infinite .15s}.lc-wave.playing span:nth-child(3){animation:waveBar .8s ease-in-out infinite .3s}.lc-wave.playing span:nth-child(4){animation:waveBar .8s ease-in-out infinite .45s}.lc-wave.playing span:nth-child(5){animation:waveBar .8s ease-in-out infinite .6s}@keyframes waveBar{0%,to{height:6px}50%{height:22px}}.lc-replay-btn{background:#ffffff1f;border:1.5px solid rgba(255,255,255,.25);border-radius:30px;color:#d4f0e0;font-family:Quicksand,sans-serif;font-size:.9rem;font-weight:700;padding:8px 18px;cursor:pointer;transition:all .15s;flex-shrink:0;margin-left:auto}.lc-replay-btn:hover{background:#ffffff38}.lc-blank-area{padding:16px 22px 6px;display:flex;flex-direction:column;gap:12px}.lc-blank-card{background:#ffffffd9;border-radius:20px 8px;border:2.5px solid #d4f0e0;padding:16px 20px;box-shadow:3px 3px #90c9a922;transition:all .35s}.lc-blank-card.lc-card-done{border-color:#2e7d5e;background:#f0fff8}.lc-blank-card.lc-card-active{border-color:#90c9a9;background:#fffffffa}.lc-blank-row{display:flex;align-items:center;gap:10px;margin-bottom:8px;flex-wrap:wrap}.lc-blank-num{background:linear-gradient(135deg,#2e7d5e,#57a87a);color:#fff;border-radius:50%;width:26px;height:26px;display:flex;align-items:center;justify-content:center;font-size:.82rem;font-weight:800;flex-shrink:0}.lc-blank-sentence{font-size:1.1rem;font-weight:700;color:#1a3d2a;line-height:1.9;flex:1}.lc-gap{display:inline-block;min-width:90px;border-bottom:3px solid #90c9a9;color:#3a7a58;text-align:center;padding:1px 10px;border-radius:8px 4px;background:#e8f9f0;font-weight:800;transition:all .3s}.lc-gap.lc-gap-active{border-color:#2e7d5e;background:#e8f9f0;color:#1a4a30}.lc-gap.lc-gap-done{border-color:#2e7d5e;background:#d4f0e0;color:#1a5a3e;border-style:solid;border-width:2px}.lc-opts{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}.lc-opt-btn{background:#f1ffe7;border:2.5px solid #90c9a9;border-radius:60px 20px;color:#1a6240;font-family:Quicksand,sans-serif;font-size:1rem;font-weight:800;padding:8px 22px;cursor:pointer;box-shadow:0 5px #71a587;transition:all .15s}.lc-opt-btn:hover:not(:disabled){background:#d4f0e0;border-color:#2e7d5e;transform:translateY(-3px);box-shadow:0 8px #3d765d}.lc-opt-btn:disabled{cursor:default}.lc-opt-btn.lc-opt-correct{background:#d4f0e0;border-color:#2e7d5e;color:#1a5a3e;box-shadow:0 4px #2e7d5e}.lc-opt-btn.lc-opt-wrong{background:#ffe4e4;border-color:#d05050;color:#c0392b;box-shadow:0 3px #8b0000;animation:shake .35s ease}.lc-blank-feedback{font-size:.95rem;font-weight:800;min-height:20px;margin-top:4px}.lc-fb-ok{color:#1a5a3e}.lc-fb-no{color:#c0392b}.lc-progress-dots{display:flex;gap:10px;justify-content:center;padding:12px 0 6px}.lc-dot{width:12px;height:12px;border-radius:50%;background:#c8e6d4;border:2px solid #90c9a9;transition:all .3s}.lc-dot.active{background:#2e7d5e;width:32px;border-radius:99px;border-color:#1a5a3e}.lc-dot.done{background:#90c9a9;border-color:#2e7d5e}.lc-score-box{background:linear-gradient(135deg,#d4f0e0,#b8e0cc);border-top:3px solid #2e7d5e;padding:20px 26px;text-align:center;font-size:1.2rem;font-weight:800;color:#1a5a3e;display:none;animation:pop .4s ease}.lc-replay-all-btn{background:#2e7d5e;border:none;border-radius:60px 20px;color:#fff;font-family:Quicksand,sans-serif;font-size:1rem;font-weight:800;padding:10px 26px;cursor:pointer;box-shadow:0 5px #1a5a3e;margin-top:12px;transition:all .15s}.lc-replay-all-btn:hover{transform:translateY(-3px)}.clock-outer{background:linear-gradient(135deg,#e8f9f0,#f0fff6);border-radius:30px 10px;border:3px solid #90c9a9;box-shadow:8px 8px #4f8b7066;padding:24px 28px;margin-bottom:20px}.clock-act-btns{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:22px}.clock-act-btn{background:#f1ffe7;border:2.5px solid #90c9a9;border-radius:60px 20px;color:#1a6240;font-family:Quicksand,sans-serif;font-size:1rem;font-weight:800;padding:10px 20px;cursor:pointer;box-shadow:0 5px #71a587;transition:all .15s}.clock-act-btn:hover{background:#d4f0e0;border-color:#2e7d5e;transform:translateY(-3px);box-shadow:0 8px #3d765d}.clock-act-btn.clk-active{background:#2e7d5e;color:#fff;border-color:#1a5a3e;box-shadow:0 5px #1a5a3e;transform:translateY(-2px)}.clock-layout{display:flex;gap:30px;align-items:flex-start;flex-wrap:wrap;justify-content:center}.clock-svg-wrap{flex-shrink:0;position:relative;width:260px;height:260px}.clock-right{flex:1;min-width:220px;display:flex;flex-direction:column;gap:14px}.clock-time-display{font-family:Nunito,sans-serif;font-size:3rem;font-weight:900;color:#1a4a30;text-align:center;background:#fffc;border-radius:20px 8px;border:2.5px solid #90c9a9;padding:10px 20px;box-shadow:4px 4px #90c9a933;letter-spacing:4px}.clock-dialog{background:#ffffffd9;border-radius:20px 8px;border:2.5px solid #90c9a9;padding:18px 20px;box-shadow:4px 4px #90c9a933}.clock-dialog-q{font-size:1rem;font-weight:700;color:#1a6240;margin-bottom:8px;line-height:1.5}.clock-dialog-a{font-size:1.05rem;font-weight:800;color:#1a4a30;min-height:28px;line-height:1.5}.clock-dialog-hint{font-size:.88rem;color:#3a7a58;font-weight:600;margin-top:6px;font-style:italic}.clock-check-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.clock-check-btn{background:#2e7d5e;border:none;border-radius:60px 20px;color:#fff;font-family:Quicksand,sans-serif;font-size:1.05rem;font-weight:800;padding:12px 28px;cursor:pointer;box-shadow:0 6px #1a5a3e;transition:all .12s}.clock-check-btn:hover{background:#1a5a3e;transform:translateY(-3px);box-shadow:0 9px #0d3826}.clock-check-btn:active{transform:translateY(3px);box-shadow:0 3px #1a5a3e}.clock-feedback{font-size:1rem;font-weight:800;min-height:24px}.clock-feedback.clk-ok{color:#1a5a3e}.clock-feedback.clk-no{color:#c0392b}.clock-drag-hint{text-align:center;font-size:.82rem;color:#3a7a58;font-weight:600;margin-top:6px}.clock-score-box{background:linear-gradient(135deg,#d4f0e0,#b8e0cc);border:3px solid #2e7d5e;border-radius:20px 8px;padding:14px 18px;text-align:center;font-size:1.1rem;font-weight:800;color:#1a5a3e;box-shadow:6px 6px #1a5a3e44;display:none;animation:pop .4s ease}@media (max-width: 768px){.family-sidebar{width:58px;padding:12px 6px}.btn-side .nb-label,.sidebar-logo h3,.sidebar-logo p,.sb-footer{display:none}.btn-side{padding:12px 6px;justify-content:center}.main-stage{padding:16px}.page-title{font-size:1.4rem}.pic-grid{grid-template-columns:repeat(2,1fr)}.lesson-card{border-radius:30px}.sb-rules-wrap,.ls-content-row{flex-direction:column}.ls-img-col{width:100%}.ls-img-box img{height:160px}.ls-bubble-item{max-width:95%}.clocks-grid{grid-template-columns:1fr}.ls-scene{min-height:280px;padding:20px 16px}.ls-lyric-line{font-size:1rem}.lc-img-wrap{height:220px}.clock-layout{flex-direction:column;align-items:center}.clock-svg-wrap{width:220px;height:220px}.sb-step-card>div[style*="display:flex"]{flex-direction:column}.sb-step-card>div[style*="display:flex"]>div:first-child{width:100%!important;height:180px!important}}