/* Tablet adventure scenes; the learning evidence stays readable and touchable. */
.mission-shell{max-width:1320px}.mission-shell .lesson-progress{max-width:none;margin-bottom:18px;padding:10px 20px}.mission-lesson{max-width:none;grid-template-columns:minmax(210px,.38fr) minmax(0,1fr);align-items:start;gap:24px}.quest-coach{border-radius:28px;background:#d2e8cf;padding:22px 18px 18px;overflow:hidden;border:1px solid #ffffff90;position:sticky;top:20px}.quest-zh{background:#f0dfd3}.quest-en{background:#cfe7ed}.quest-copy h2{font-size:25px;line-height:1.4;margin:8px 0}.quest-copy p{font-size:14px;line-height:1.6;color:#557261;margin:0}.quest-copy .eyebrow{font-size:10px}.quest-scene{height:255px;position:relative;margin:14px -18px 18px;background:linear-gradient(180deg,#ffffff00 54%,#a3d0a5 55%,#d0e3aa 100%);border-bottom:5px solid #8bb692;overflow:hidden}.quest-zh .quest-scene{background:linear-gradient(180deg,#fff0 54%,#dfb7b3 55%,#e5d5ab 100%);border-color:#ceaaa1}.quest-en .quest-scene{background:linear-gradient(180deg,#fff0 54%,#9bc7bc 55%,#cee3b4 100%)}.quest-sun{position:absolute;width:55px;height:55px;border-radius:50%;background:#fff3ad;box-shadow:0 0 0 12px #fff8cd44;top:12px;right:22px}.quest-partner{position:absolute;width:195px;height:195px;left:calc(15px + var(--progress)*22px);top:6px;transition:left .6s ease}.quest-path{display:flex;gap:6px;position:absolute;bottom:17px;left:20px;right:20px;justify-content:center;flex-wrap:wrap}.quest-piece{width:42px;min-width:25px;height:24px;border-radius:8px;background:#fff8;border:2px dashed #84a982;display:grid;place-items:center;color:#8b9e80;font-size:20px;font-weight:900;transition:all .4s}.quest-piece.lit{background:#b97b4c;border-style:solid;border-color:#936440;color:#ffe3a6;box-shadow:0 4px #754a3433}.quest-zh .quest-piece.lit{background:#ed9aa9;color:white;border-color:#d67e95}.quest-en .quest-piece.lit{background:#e7b452;color:#fff6ce;border-color:#c49746}.quest-found{position:absolute;bottom:58px;left:0;right:0;text-align:center;font-size:13px;font-weight:800;color:#517056}.step-solved .quest-found{animation:clue-arrives .65s ease-out;color:#375d40}.quest-coach .speech{font-size:14px;padding:13px 16px;max-width:none}.quest-coach .coach-subject{display:block;text-align:center;font-size:13px;margin-top:14px}.mission-lesson .question-card{padding:25px 30px;min-height:500px;border-radius:28px}.mission-lesson .question-card h2{font-size:26px;line-height:1.6;margin:16px 0 18px}.mission-lesson .question-meta{font-size:13px;color:#66836b}.clue-cards{display:flex;gap:9px;justify-content:center;flex-wrap:wrap;margin:0 0 16px;padding:15px;border-radius:18px;background:#edf3e7}.clue-cards>span{background:#fffdf2;border:1px solid #ccdabc;border-radius:12px;min-height:45px;min-width:43px;display:grid;place-items:center;padding:8px 12px;font-size:21px;font-weight:800;color:#4f705a;box-shadow:0 3px #b6caad55}.evidence-paper{background:#f5edda;border:1px solid #e4d5ae;border-radius:18px;margin:0 0 16px;padding:16px 22px;position:relative}.evidence-paper>div{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.evidence-paper b{font-size:17px;color:#77624b}.evidence-paper small{font-size:12px;color:#897d68}.evidence-paper .mini-button{margin-left:auto;font-size:12px;min-height:44px}.evidence-paper p{font-size:21px;line-height:1.8;margin:9px 0 2px;white-space:pre-line;letter-spacing:2px}.evidence-paper.idiom p{font-size:20px;letter-spacing:.5px}.mission-lesson .answers{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.mission-lesson .answer{font-size:22px;min-height:76px;padding:12px 14px}.mission-lesson .answer.correct{animation:clue-arrives .4s ease-out}.mission-lesson .answer.correct:disabled{opacity:1;color:#315f42}.mission-lesson .sentence-answers{grid-template-columns:1fr}.mission-lesson .sentence-answers .answer{font-size:20px;min-height:60px}.mission-lesson .sentence-answers .answer>span{font-size:20px}.mission-lesson .picture-answers .answer{min-height:108px}.mission-lesson .option-picture{font-size:40px}.mission-lesson .feedback{font-size:16px;line-height:1.7;margin:10px 0;min-height:44px}.mission-lesson .question-actions .button{min-height:54px;min-width:170px}.mission-lesson .question-actions .text-button{min-height:48px}.mission-lesson .ordering>.text-button{position:static;margin:5px 0 0 auto;min-height:44px}.mission-lesson .word-token{font-size:23px;min-height:56px}.mission-lesson .order-target{min-height:78px;margin-bottom:14px}.thinking-toggle{align-self:flex-start;background:#e8f0dd;color:#54724d;border:1px solid #c8d7bc;border-radius:14px;padding:12px 16px;min-height:48px;font-size:15px;font-weight:750;cursor:pointer;margin-bottom:5px}.thinking-tray{background:#eef3e6;border-radius:18px;padding:12px 14px;margin:0 0 10px}.thinking-title{display:flex;align-items:center;justify-content:space-between;font-size:14px;color:#5f7752}.thinking-title .text-button{min-height:44px;padding:6px 12px}.counter-trays{display:grid;grid-template-columns:1fr 1fr;gap:12px}.counter-tray{background:#fffefa;border:1px dashed #bed2b3;border-radius:12px;padding:10px}.counter-tools{display:flex;align-items:center;gap:6px}.counter-tools>span{font-weight:750;margin-right:auto;font-size:13px}.counter-button{width:44px;height:44px;border:0;background:#e8eedf;border-radius:11px;color:#416446;font-size:23px}.counter-button:disabled{opacity:.4}.counter-dots{display:flex;flex-wrap:wrap;gap:6px;min-height:36px;padding:12px 0 0}.counter-dots i{display:block;width:19px;height:19px;border-radius:50%;background:#e4a955;box-shadow:inset -3px -3px #cc9036}.tray-1 .counter-dots i{background:#73b1c2;box-shadow:inset -3px -3px #568da5}.counter-dots small{color:#9ba58e;font-size:12px}.tray-transfer{display:flex;justify-content:space-between;margin-top:5px}.tray-transfer .text-button{min-height:44px;font-size:13px;padding:6px 12px}.word-discovery{display:flex;align-items:center;gap:14px;background:#e2eff0;border:1px solid #c6dedd;border-radius:16px;padding:14px 16px;margin:0 0 14px;animation:clue-arrives .45s ease-out}.word-discovery>span{font-size:40px}.word-discovery>div{flex:1;min-width:0}.word-discovery small{display:block;color:#628482;font-size:11px}.word-discovery strong{font-size:25px;color:#335f69;display:block}.word-discovery em{font-style:normal;font-size:15px;font-weight:500;margin-left:6px}.word-discovery p{margin:5px 0 0;font-size:14px;color:#618180}.word-discovery .icon-button{flex-shrink:0}.mission-lesson .question-picture{font-size:65px;margin:0 0 15px}.mission-lesson .question-picture.text-card{font-size:30px}.mission-lesson .listening-tools{margin:0 0 14px}.mission-lesson .text-button{touch-action:manipulation}.mission-lesson button{touch-action:manipulation}.mission-lesson button:focus-visible{outline:3px solid #f0af44;outline-offset:3px}
@keyframes clue-arrives{from{opacity:.45;transform:translateY(9px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}
@media(min-width:801px) and (max-height:850px){.mission-shell{padding-top:18px;padding-bottom:32px}.mission-shell .topbar{margin-bottom:18px}.quest-coach{padding:18px 16px}.quest-copy h2{font-size:22px}.quest-scene{height:215px;margin-top:7px;margin-bottom:14px}.quest-partner{width:170px;height:170px;top:0}.quest-found{bottom:52px}.mission-lesson .question-card{padding:22px 26px;min-height:480px}.mission-lesson .question-card h2{font-size:25px;margin:12px 0 15px}.evidence-paper{padding:12px 18px}.evidence-paper p{font-size:20px;line-height:1.7}.mission-lesson .feedback{margin:6px 0}.clue-cards{padding:12px}.mission-lesson .order-target{min-height:70px}.mission-lesson .word-token{font-size:21px;padding:10px 14px}.mission-lesson .answers{margin:10px 0}.mission-lesson .question-actions{margin-top:12px}}
@media(max-width:800px){.mission-lesson{display:flex;flex-direction:column;gap:16px}.quest-coach{position:static;width:100%;display:grid;grid-template-columns:minmax(0,1fr) 180px;padding:16px 20px;min-height:150px;border-radius:22px}.quest-copy h2{font-size:24px;margin:5px 0}.quest-copy p{font-size:13px}.quest-scene{grid-column:2;grid-row:1/4;height:140px;margin:-12px -12px -12px 5px;border:0;background:transparent!important;overflow:visible}.quest-partner{height:120px;width:120px;left:calc(12px + var(--progress)*12px);top:-5px}.quest-sun{width:30px;height:30px;right:10px;top:5px}.quest-path{bottom:5px;left:5px;right:5px;gap:4px}.quest-piece{width:33px;height:20px}.quest-found{bottom:30px;font-size:11px}.quest-coach .speech{font-size:13px;padding:8px 12px;margin-top:10px;max-width:360px}.quest-coach .speech:before{display:none}.quest-coach .coach-subject{display:none}.mission-lesson .question-card{width:100%;padding:25px;min-height:460px}.mission-shell .lesson-progress{margin-bottom:14px}.mission-lesson .question-card h2{font-size:26px}.mission-shell{padding-bottom:30px}.mission-lesson .question-actions{margin-top:15px}}
@media(max-width:500px){.quest-coach{grid-template-columns:minmax(0,1fr) 110px;padding:14px;min-height:130px}.quest-copy h2{font-size:20px}.quest-copy p{font-size:12px}.quest-scene{height:125px}.quest-partner{width:100px;height:100px;left:0!important;top:0}.quest-sun{display:none}.quest-path{gap:3px;left:0;right:0}.quest-piece{min-width:17px;width:21px;height:18px;font-size:15px}.quest-found{font-size:10px}.quest-coach .speech{font-size:12px;padding:6px 10px}.mission-lesson .question-card{padding:20px 16px;border-radius:22px}.mission-lesson .question-card h2{font-size:23px}.mission-lesson .answers{gap:8px}.mission-lesson .answer{font-size:20px;padding:12px 8px}.mission-lesson .picture-answers .answer>span:last-child{font-size:15px}.mission-lesson .word-token{font-size:21px;padding:10px 12px}.clue-cards{padding:12px 8px;gap:7px}.clue-cards>span{font-size:18px;padding:7px 9px}.evidence-paper{padding:12px 14px}.evidence-paper p{font-size:19px;letter-spacing:1px}.evidence-paper.idiom p{font-size:18px}.mission-lesson .feedback{font-size:15px}.mission-lesson .question-actions{gap:5px}.mission-lesson .question-actions .button{min-width:150px;font-size:16px}.mission-lesson .question-actions .text-button{font-size:13px;padding:8px 6px}.counter-trays{gap:6px}.counter-tray{padding:8px}.counter-tools{flex-wrap:wrap}.counter-tools>span{width:100%;flex-basis:100%}.word-discovery{padding:11px;gap:10px}.word-discovery>span{font-size:30px}.word-discovery strong{font-size:23px}.word-discovery em{font-size:12px;margin-left:3px}.word-discovery .icon-button{width:38px;height:40px}}
@media(prefers-reduced-motion:reduce){.mission-lesson *{animation:none!important;transition:none!important}}.reduced-motion .mission-lesson *{animation:none!important;transition:none!important}

.eraser-picture{display:inline-block;width:40px;height:23px;border-radius:4px;background:linear-gradient(90deg,#e5a7b0 0 52%,#f2dfb1 52%);border:1px solid #bb887b;box-shadow:0 4px 0 #b88373;transform:skew(-14deg) rotate(-9deg);vertical-align:middle}