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0;font-size:14px;line-height:1.6;color:#76847a}.notes-link{display:block;border-top:1px solid #e9eee5;padding-top:11px;margin-top:13px;text-decoration:none;color:#648573;font-size:14px}.notes-link span{float:right;font-size:14px}.page-footer{margin-top:23px;padding-top:13px;border-top:1px solid #e8ece6;display:flex;align-items:center;gap:16px;color:#a1aaa2;font-size:14px}.page-footer>span:first-child{letter-spacing:.1em;color:#849787}.page-footer i{font-style:normal;color:#c1a171}.page-footer>span:nth-child(2){margin-left:auto}.page-footer a{color:#859688;text-decoration:none}.quiz-dialog,.complete-dialog{border:0;border-radius:17px;padding:0;width:min(600px,calc(100% - 28px));max-height:calc(100% - 28px);box-shadow:0 25px 90px #25392f30;color:var(--ink)}.quiz-dialog::backdrop,.complete-dialog::backdrop{background:#25332fb5;backdrop-filter:blur(4px)}.quiz-shell{display:flex;flex-direction:column;max-height:calc(100vh - 60px)}.quiz-top{padding:18px 24px 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span:last-child{margin-left:auto;color:#a4ada6}.patient-dot{width:6px;height:6px;border-radius:50%;background:#8eaf92}.scenario-message{display:flex;gap:11px;background:#f4f7f2;padding:13px;border-radius:10px;margin:10px 0 18px}.patient-avatar{width:30px;height:30px;background:#e3eee5;color:#58806a;border-radius:9px;display:grid;place-items:center;font-size:14px;font-weight:700;flex:none}.speaker-label{font-size:14px;color:#8ea092}.scenario-message p{font-size:14px;line-height:1.7;color:#52645a;margin:5px 0 0}.quiz-body h2{font-size:19px;line-height:1.5;margin:0 0 4px}.question-hint{font-size:14px;color:#929c95;margin:0 0 12px}.answer-list{display:grid;gap:8px}.answer-option{width:100%;text-align:left;background:#fff;border:1px solid #e6ebe5;border-radius:9px;padding:10px 12px;display:flex;align-items:start;gap:10px;color:#53645a;font:14px/1.55 "DM Sans","Noto Sans 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0}.complete-content p{font-size:14px;color:#87938a}.result-score{border:1px solid #e9eee7;border-radius:10px;display:flex;align-items:center;justify-content:center;gap:30px;margin:22px auto;width:max-content;padding:13px 23px}.result-score>div:not(.result-divider){display:grid;gap:5px}.result-score strong{font-size:21px;color:#477b67}.result-score span{font-size:14px;color:#94a097}.result-divider{height:29px;border-left:1px solid #e5ebe3}.restart-button{height:37px;padding:0 17px}.review-button{display:block;margin:12px auto 0}.restart-button span{font-size:15px}.hidden{display:none!important}
@media(max-width:1000px){.sidebar{width:204px}.main-content{margin-left:204px;width:calc(100% - 204px)}.content-wrap{padding-left:4%;padding-right:4%}.learning-layout{grid-template-columns:minmax(0,1.3fr) minmax(235px,.8fr);gap:14px}.stats-row{grid-template-columns:1fr 1fr}.welcome-art{transform:scale(.86);transform-origin:right center;margin-right:0}.page-footer{flex-wrap:wrap}.page-footer>span:nth-child(2){margin-left:0}}
@media(max-width:720px){.sidebar{width:60px;padding:18px 8px}.brand{margin:0 auto 35px}.brand>span:last-child,.sidebar-label,.nav-item:not(.active),.nav-item.active{font-size:0}.nav-item{justify-content:center;padding:0;width:42px;margin:auto}.nav-icon{font-size:21px}.nav-count,.mentor-card,.sidebar-footer{display:none}.main-content{margin-left:60px;width:calc(100% - 60px)}.topbar{height:55px;padding:0 16px}.today-label{display:none}.topbar-right{gap:8px}.content-wrap{padding:24px 16px}.welcome-row{min-height:0;margin-bottom:19px}.welcome-row h1{font-size:28px}.welcome-copy{max-width:320px;line-height:1.6}.welcome-art{display:none}.stats-row{gap:7px;margin-bottom:23px}.stat-card{min-height:60px;padding:9px;gap:7px}.stat-icon{width:27px;height:27px}.stat-card strong{font-size:14px}.goal-card strong{font-size:14px}.learning-layout{grid-template-columns:1fr}.right-column{grid-template-columns:1fr 1fr;align-items:start}.side-card{padding:13px}.path-step{min-height:42px}.case-cover{height:240px}.cover-illustration{right:-38px;transform:scale(.83);transform-origin:right bottom}.cover-copy{left:19px}.cover-index{left:19px}.cover-copy h3{font-size:22px;max-width:240px}.cover-copy p{max-width:210px;line-height:1.6}.case-meta{gap:10px;padding:10px}.meta-item strong{font-size:14px}.meta-item:last-of-type{max-width:105px}.meta-status{font-size:0}.focus-strip div span{line-height:1.5}.page-footer{gap:10px}.page-footer>span:nth-child(2){width:100%;order:2}.page-footer a{font-size:14px}.quiz-body{padding:15px 17px}.quiz-top,.quiz-progress-row{padding-left:17px;padding-right:17px}.quiz-progress{margin:0 17px}.quiz-bottom{padding:11px 17px}.keyboard-hint{display:none}.right-column{grid-template-columns:1fr}}

/* First-person learning game and API session UI */
.api-indicator{display:flex;align-items:center;gap:6px;font-size:14px;color:#87938a}.api-indicator i{width:7px;height:7px;border-radius:50%;background:#d5a676}.api-indicator.online i{background:#78aa83;box-shadow:0 0 0 3px #e8f2e9}.api-indicator.offline{color:#ad746b}.api-indicator.offline i{background:#c98271;box-shadow:0 0 0 3px #f7ece8}
.first-person-bar{display:flex;align-items:center;gap:9px;background:#edf4ed;border:1px solid #e1ebe0;border-radius:9px;padding:9px 11px;margin-bottom:13px;flex-wrap:wrap}.fp-mark{font-size:14px;letter-spacing:.08em;font-weight:800;color:#fff;background:#648b70;border-radius:5px;padding:5px 6px}.first-person-bar strong{font-size:14px;color:#496453}.fp-role,.fp-place,.fp-duty{font-size:14px;color:#7c8c80;border-left:1px solid #dce7dc;padding-left:9px}.fp-duty{margin-left:auto;color:#66846b}
.session-dialog{border:0;border-radius:17px;padding:0;width:min(430px,calc(100% - 28px));box-shadow:0 25px 90px #25392f30;color:var(--ink)}.session-dialog::backdrop{background:#25332fb5;backdrop-filter:blur(4px)}.session-form{position:relative;padding:30px 31px 25px}.session-close{position:absolute;right:16px;top:16px}.session-form .complete-symbol{margin:0 auto 13px}.session-form>.eyebrow{justify-content:center}.session-form h2{text-align:center;font-size:23px;margin:9px 0}.session-intro{text-align:center;font-size:14px;line-height:1.7;color:#849088;margin:0 auto 19px;max-width:320px}.field-label{display:block;font-size:14px;font-weight:700;color:#58695f;margin-bottom:6px}.session-form input[type=text],.session-form input:not([type]){width:100%;height:38px;border:1px solid #dfe7df;border-radius:7px;padding:0 11px;font:14px "DM Sans","Noto Sans TC",sans-serif;color:#43544a;outline:none}.session-form input:focus{border-color:#83a88c;box-shadow:0 0 0 3px #eef5ed}.privacy-check{display:flex;gap:8px;align-items:start;margin:12px 0;color:#7c8980;font-size:14px;line-height:1.65}.privacy-check input{margin:2px 0 0;accent-color:#578166;flex:none}.session-start{width:100%;height:38px;margin-top:5px}.session-start:disabled{background:#aebdaf;cursor:wait}.session-note{display:flex;align-items:center;justify-content:center;gap:7px;margin-top:12px;color:#92a096;font-size:14px}.session-note .status-dot{width:6px;height:6px}.api-error{min-height:13px;color:#ae7165;font-size:14px;line-height:1.5}.answer-option:disabled{cursor:default}.answer-option:disabled:hover{transform:none}
@media(max-width:720px){.first-person-bar{gap:6px}.fp-duty{margin-left:0;border-left:0;padding-left:0;width:100%}.fp-role,.fp-place{font-size:14px}.session-form{padding:27px 20px 21px}.api-indicator{font-size:14px}}
#quizDialog[data-stage="level-1"] .first-person-bar{background:#edf3ec;border-color:#e0ebdf}#quizDialog[data-stage="level-2"] .first-person-bar{background:#f6f1e8;border-color:#eee6d8}#quizDialog[data-stage="level-3"] .first-person-bar{background:#edf1f5;border-color:#e1e8ed}#quizDialog[data-stage="pretest"] .first-person-bar,#quizDialog[data-stage="posttest"] .first-person-bar{background:#f1eff6;border-color:#e8e5ef}

/* Pre-game admission routine lesson */
.lesson-dialog{border:0;border-radius:18px;padding:0;width:min(760px,calc(100% - 28px));max-height:min(90vh,850px);overflow:auto;box-shadow:0 28px 100px #25392f35;color:var(--ink)}
.lesson-dialog::backdrop{background:#25332fb8;backdrop-filter:blur(5px)}
.lesson-shell{padding:29px 34px 25px}
.lesson-top{display:flex;justify-content:space-between;align-items:start;gap:18px}
.lesson-top h2{font-size:26px;margin:8px 0 0;letter-spacing:.03em}
.lesson-lead{font-size:14px;line-height:1.8;color:#76847b;margin:13px 0 17px}
.lesson-progress{height:5px;background:#edf1ea;border-radius:99px;overflow:hidden}
.lesson-progress span{display:block;height:100%;background:#78a486;transition:width .25s}
.lesson-counter{font-size:14px;color:#839187;margin:12px 0}
.lesson-card{display:grid;grid-template-columns:64px 1fr;gap:20px;min-height:205px;padding:24px;background:linear-gradient(130deg,#f4f8f1,#edf4ed);border:1px solid #e4ece2;border-radius:14px}
.lesson-number{width:54px;height:54px;border-radius:16px;background:#fff;display:grid;place-items:center;color:#5c8b6c;font:600 21px Georgia,serif;box-shadow:0 5px 18px #38543b10}
.lesson-card h3{font-size:22px;margin:2px 0 8px}
.lesson-card p{font-size:14px;line-height:1.8;color:#5e6e63;margin:0}
.lesson-focus{margin-top:15px;padding:11px 13px;background:#fff;border-left:3px solid #83a98a;border-radius:0 8px 8px 0;font-size:14px;line-height:1.7;color:#68776d}
.lesson-focus strong{display:block;font-size:14px;letter-spacing:.08em;color:#64836b;margin-bottom:3px}
.lesson-all-steps{display:flex;gap:6px;flex-wrap:wrap;margin:15px 0 19px}
.lesson-chip{padding:6px 8px;border:1px solid #e8ede6;border-radius:7px;background:#fff;font-size:14px;color:#929d95}
.lesson-chip.active{border-color:#83a88c;background:#edf5ec;color:#4f7659;font-weight:700}
.lesson-chip.done{color:#68846d;background:#f6f9f4}
.lesson-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid #edf0eb;padding-top:15px}
.lesson-actions>span{font-size:14px;color:#99a39b;text-align:center}
.lesson-actions button:disabled{opacity:.4;cursor:default}
.lesson-actions .start-button{padding:0 16px;min-height:36px;font-size:14px}
/* Animated patient and family dialogue scene */
.scene-stage{position:relative;display:grid;grid-template-columns:85px minmax(0,1fr) 85px;align-items:end;gap:12px;min-height:142px;margin:12px 0 12px;padding:13px 15px 9px;border:1px solid #e7ece4;border-radius:14px;background:radial-gradient(ellipse at 52% 110%,#dce9dc 0 35%,transparent 36%),linear-gradient(145deg,#f7f9f5,#eef4ed);overflow:hidden}
.scene-stage::before{content:"";position:absolute;inset:12px 12px auto;height:1px;background:#dce7db}
.animated-person{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;animation:personFloat 3s ease-in-out infinite}
.family-person{animation-delay:-1.4s}
.character-head{width:43px;height:43px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(150deg,#f3d6bd,#dcae8e);color:#805f4a;font-weight:700;font-size:15px;border:3px solid #fff;box-shadow:0 4px 12px #354c391c}
.character-body{width:67px;height:49px;margin-top:-2px;border-radius:25px 25px 9px 9px;background:linear-gradient(120deg,#9db99e,#6f967e);display:flex;justify-content:center;align-items:start;padding-top:12px;box-shadow:inset 0 4px 10px #ffffff35}
.family-person .character-body{background:linear-gradient(120deg,#d6b89d,#bd967b)}
.character-badge{background:#ffffffc9;border-radius:99px;padding:3px 7px;color:#637265;font-size:14px}
.character-caption{margin-top:4px;font-size:14px;color:#738177;white-space:nowrap}
.scene-dialogue{align-self:center;position:relative;z-index:2;background:#fff;border:1px solid #e7ece6;border-radius:12px;padding:11px 13px;box-shadow:0 5px 18px #354c3910}
.scene-dialogue::after{content:"";position:absolute;left:-6px;bottom:19px;width:10px;height:10px;background:#fff;border-left:1px solid #e7ece6;border-bottom:1px solid #e7ece6;transform:rotate(45deg)}
.scene-dialogue p{font-size:14px;line-height:1.75;color:#52645a;margin:5px 0 0}
.family-speaking .family-person .character-head{box-shadow:0 0 0 4px #e7d2bf,0 4px 12px #354c391c}
.family-speaking .family-person .character-body{filter:brightness(1.06)}
.family-hidden .family-person{visibility:hidden}
.nurse-cue{margin:0 0 11px;padding:7px 10px;border-radius:7px;background:#f8f5eb;color:#91794f;font-size:14px;line-height:1.6}
@keyframes personFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}
@media(max-width:720px){.lesson-shell{padding:22px 17px 18px}.lesson-top h2{font-size:21px}.lesson-card{grid-template-columns:42px 1fr;gap:12px;padding:15px;min-height:0}.lesson-number{width:38px;height:38px;border-radius:12px;font-size:20px}.lesson-card h3{font-size:19px}.lesson-card p{font-size:14px}.lesson-actions>span{display:none}.lesson-actions{justify-content:space-between}.scene-stage{grid-template-columns:55px minmax(0,1fr) 55px;gap:7px;min-height:125px;padding:10px 8px 8px}.character-head{width:35px;height:35px}.character-body{width:50px;height:42px}.character-caption{font-size:14px}.scene-dialogue{padding:9px}.scene-dialogue p{font-size:14px}}
.scene-stage.patient-speaking .patient-person .character-head{box-shadow:0 0 0 4px #cfe0d1,0 4px 12px #354c391c}
.scene-stage.patient-speaking .patient-person .character-body{filter:brightness(1.06)}
.scenario-brief{display:flex;gap:9px;align-items:start;padding:9px 11px;margin:-3px 0 12px;border:1px solid #e9ede5;border-radius:8px;background:#fbfcf9;font-size:14px;line-height:1.65;color:#748078}
.scenario-brief strong{flex:none;color:#63816a}
.scenario-brief.hidden{display:none!important}
.lesson-error{min-height:16px;color:#aa6c5f;font-size:14px;line-height:1.6}
.scene-change .scene-dialogue{animation:dialogueEnter .28s ease-out both}
.scene-stage.patient-speaking .patient-person,.scene-stage.family-speaking .family-person{animation:characterTalk .65s ease-in-out infinite alternate}
@keyframes dialogueEnter{from{opacity:.35;transform:translateY(5px) scale(.985)}to{opacity:1;transform:translateY(0) scale(1)}}
@keyframes characterTalk{from{transform:translateY(0) scale(1)}to{transform:translateY(-3px) scale(1.015)}}
@media(prefers-reduced-motion:reduce){.animated-person,.scene-change .scene-dialogue,.scene-stage.patient-speaking .patient-person,.scene-stage.family-speaking .family-person{animation:none!important}}
.animation-dialog{border:0;border-radius:18px;padding:0;width:min(760px,calc(100% - 28px));max-height:min(90vh,850px);overflow:auto;box-shadow:0 28px 100px #25392f35;color:var(--ink)}
.animation-dialog::backdrop{background:#25332fb8;backdrop-filter:blur(5px)}
.animation-shell{padding:29px 34px 24px}
.animation-head{display:flex;justify-content:space-between;align-items:start;gap:18px}
.animation-head h2{font-size:26px;margin:8px 0 0}
.animation-lead{font-size:14px;line-height:1.8;color:#76847b;margin:12px 0 17px}
.animation-meter{height:5px;background:#edf1ea;border-radius:99px;overflow:hidden}
.animation-meter span{display:block;height:100%;background:#78a486;transition:width .35s}
.animation-counter{font-size:14px;color:#839187;margin:12px 0}
.animation-scene{position:relative;display:grid;grid-template-columns:96px minmax(0,1fr) 96px;align-items:end;gap:16px;min-height:195px;padding:19px 20px 12px;border:1px solid #e7ece4;border-radius:15px;background:radial-gradient(ellipse at 50% 112%,#dce9dc 0 35%,transparent 36%),linear-gradient(145deg,#f7f9f5,#eef4ed);overflow:hidden}
.animation-scene::before{content:"";position:absolute;inset:17px 16px auto;height:1px;background:#dce7db}
.animation-scene .character-head{width:54px;height:54px;font-size:19px}
.animation-scene .character-body{width:79px;height:65px}
.animation-scene .scene-dialogue{padding:14px 16px}
.animation-scene .scene-dialogue p{font-size:15px;line-height:1.8}
.animation-action{margin:14px 0 10px;padding:15px 17px;border-radius:11px;background:#f4f8f1;border:1px solid #e5ece2}
.animation-action strong{font-size:14px;color:#55785f}
.animation-action p{font-size:14px;line-height:1.8;color:#5c6c62;margin:6px 0 0}
.animation-controls{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:8px 0 13px;border-bottom:1px solid #edf0eb}
.animation-controls button{cursor:pointer}
.animation-controls .start-button{min-height:36px;padding:0 16px;font-size:14px}
.animation-controls button:disabled{opacity:.4;cursor:default}
.animation-play{border:1px solid #dce7db;background:#fff;border-radius:8px;padding:9px 14px;color:#618069;font-size:14px}
.animation-footer{display:flex;justify-content:space-between;align-items:center;gap:18px;padding-top:13px}
.animation-footer>span{font-size:14px;line-height:1.7;color:#79857c}
.animation-start{border:0;border-radius:8px;background:#477b67;color:white;padding:11px 15px;font-size:14px;white-space:nowrap;cursor:pointer}
.animation-error{min-height:16px;color:#aa6c5f;font-size:14px;line-height:1.6}
@media(max-width:720px){.animation-shell{padding:22px 17px 17px}.animation-head h2{font-size:21px}.animation-scene{grid-template-columns:58px minmax(0,1fr) 58px;gap:8px;min-height:156px;padding:12px 8px 9px}.animation-scene .character-head{width:37px;height:37px}.animation-scene .character-body{width:52px;height:46px}.animation-scene .scene-dialogue{padding:9px}.animation-scene .scene-dialogue p{font-size:14px}.animation-controls{gap:5px}.animation-controls button{font-size:14px;padding-left:8px;padding-right:8px}.animation-footer{align-items:stretch;flex-direction:column;gap:9px}.animation-start{align-self:stretch}}
.animation-start:disabled{background:#aebdaf;cursor:not-allowed;opacity:.75}
.video-frame{width:100%;overflow:hidden;border-radius:14px;background:#17201b;box-shadow:0 12px 28px #20362d19;aspect-ratio:16/9}
.video-frame video{display:block;width:100%;height:100%;object-fit:contain;background:#17201b}
.video-hint{font-size:14px;color:#86938a;margin:8px 2px 13px;line-height:1.6}
.animation-dialogue{position:relative;padding:12px 15px;margin:0 0 10px;background:#f4f7f2;border:1px solid #e8ede6;border-radius:10px}
.animation-dialogue p{font-size:18px;line-height:1.7;color:#52645a;margin:5px 0 0}
.video-watch-status{flex:1;text-align:center;color:#72877a;font-size:14px;line-height:1.5}
.animation-start:disabled{background:#aebdaf;cursor:not-allowed;opacity:.75}
@media(max-width:720px){.video-hint{font-size:15px;line-height:1.65}.animation-dialogue{padding:14px 15px}.animation-dialogue p{font-size:18px;line-height:1.7}.animation-action p{font-size:16px;line-height:1.7}.video-watch-status{max-width:115px}}
.original-film{position:relative;aspect-ratio:16/9;overflow:hidden;border:1px solid #dbe5d8;border-radius:14px;background:#dce9d9;box-shadow:0 12px 28px #20362d19}
.original-film canvas{display:block;width:100%;height:100%;object-fit:contain}
.film-dialogue-overlay{display:none}
.film-badge{position:absolute;top:12px;left:14px;display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:99px;background:#fffdf0df;color:#536d59;font-size:14px;box-shadow:0 2px 8px #29422a12}
.film-badge .status-dot{width:7px;height:7px;border-radius:50%;background:#79a98a}
.film-caption{position:absolute;inset:auto 0 0;padding:35px 22px 15px;background:linear-gradient(transparent,#263a31d9);color:white;display:grid;gap:5px}
.film-caption small{font-size:14px;color:#e8f2e8}
.film-caption strong{font-size:18px;line-height:1.6;font-weight:600;text-shadow:0 1px 2px #263a31}
.film-controls{display:grid;grid-template-columns:auto auto minmax(50px,1fr) auto;align-items:center;gap:8px;margin:10px 0 2px}
.film-controls{grid-template-columns:auto auto minmax(50px,1fr) auto auto}
.film-control{border:1px solid #dce7db;background:#fff;border-radius:8px;padding:9px 12px;color:#618069;font-size:14px;white-space:nowrap;cursor:pointer}
.film-control.primary{background:#477b67;border-color:#477b67;color:#fff}
.film-controls input{width:100%;accent-color:#618d70}
.film-controls output{min-width:82px;text-align:right;color:#74847a;font-size:14px;font-variant-numeric:tabular-nums}
@media(max-width:720px){.film-controls{grid-template-columns:auto auto minmax(40px,1fr);gap:6px}.film-controls input{grid-row:2;grid-column:2/-1}.film-controls output{grid-row:3;grid-column:1/-1;text-align:center}.film-controls .music-toggle{grid-row:2;grid-column:1}.film-control{padding:8px 9px}.film-caption{padding:25px 12px 10px}.film-caption strong{font-size:16px;line-height:1.45}.film-badge{top:7px;left:8px;font-size:14px;padding:5px 8px}.film-dialogue-overlay{display:block;position:absolute;z-index:2;top:43px;left:8px;right:8px;max-height:55%;overflow:hidden;padding:8px 10px;border:1px solid #d9e5d8;border-radius:10px;background:#fffdf4f2;color:#40544a;box-shadow:0 2px 10px #20362d20}.film-dialogue-overlay strong{display:block;font-size:14px;line-height:1.3;color:#477b67}.film-dialogue-overlay p{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden;margin:3px 0 0;font-size:16px;font-weight:600;line-height:1.4}}
#startButton{position:relative;z-index:2;animation:findCaseButton 1s ease-in-out infinite;transform-origin:center;box-shadow:0 6px 16px #477b6740}
#startButton:hover,#startButton:focus-visible{animation-play-state:paused;outline:3px solid #d9a866;outline-offset:4px}
@keyframes findCaseButton{0%,100%{transform:translateY(0);box-shadow:0 5px 12px #477b6726}45%{transform:translateY(-7px);box-shadow:0 10px 22px #477b6752}60%{transform:translateY(0);box-shadow:0 5px 12px #477b6726}}
@media(prefers-reduced-motion:reduce){#startButton{animation:none;outline:2px solid #d9a866;outline-offset:3px}}
.cover-copy p{max-width:430px;line-height:1.7}
@media(max-width:720px){.cover-copy p{max-width:210px;line-height:1.6}}
.cover-cta-row{display:flex;align-items:center;gap:16px}
.cover-cta-row .cover-index{position:static;margin:0;font-size:14px;color:#7e9784;letter-spacing:.1em}

/* Mobile-first navigation and full-width touch layouts. */
@media(max-width:720px){
  .sidebar{width:100%;height:auto;min-height:0;padding:6px 8px calc(6px + env(safe-area-inset-bottom));inset:auto 0 0;top:auto;border-right:0;border-top:1px solid #e8ece6;box-shadow:0 -5px 18px #2639360c;background:rgba(255,255,255,.97)}
  .brand,.sidebar-label,.sidebar-spacer,.mentor-card,.sidebar-footer{display:none}
  .main-nav{width:100%;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px}
  .nav-item,.nav-item.active,.nav-item:not(.active){width:100%;height:auto;min-height:52px;margin:0;padding:4px 2px;display:flex;flex-direction:column;justify-content:center;gap:2px;font-size:14px;line-height:1.2;white-space:nowrap}
  .nav-icon{font-size:18px;line-height:1.1}
  .nav-count{display:none}
  .main-content{margin:0;width:100%;padding-bottom:calc(68px + env(safe-area-inset-bottom))}
  .topbar{padding:0 14px}
  .breadcrumb{font-size:14px}
  .user-chip{font-size:14px}
  .content-wrap{padding:20px 14px 24px}
  .welcome-row h1{font-size:26px;line-height:1.42}
  .welcome-copy{font-size:14px}
  .stats-row{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .stat-card{min-width:0}
  .goal-card strong{line-height:1.45}
  .case-cover{height:auto;min-height:390px;padding:22px 16px 154px}
  .cover-copy{position:relative;inset:auto;max-width:100%}
  .cover-kicker{font-size:14px;letter-spacing:.12em}
  .cover-copy h3{font-size:22px;line-height:1.45;max-width:none;margin:12px 0 8px}
  .cover-copy p{font-size:14px;max-width:none;line-height:1.65;margin-bottom:13px}
  .cover-cta-row{align-items:center;flex-wrap:wrap;gap:10px}
  .start-button{min-height:44px;height:auto;padding:9px 14px;font-size:14px;touch-action:manipulation}
  .cover-illustration{width:205px;height:150px;right:0;bottom:0;transform:scale(.72);transform-origin:right bottom}
  .illu-person{bottom:0}
  .case-meta{flex-wrap:wrap;align-items:flex-start;gap:8px 12px}
  .meta-item{min-width:0;flex:1 1 40%}
  .meta-divider{display:none}
  .meta-item strong{line-height:1.45}
  .meta-status{margin-left:0;max-width:none!important;font-size:14px;flex:1 1 100%}
  .focus-strip{align-items:flex-start;flex-wrap:wrap}
  .focus-strip a{margin-left:29px}
  .page-footer{padding-bottom:10px}
  .session-dialog,.quiz-dialog,.complete-dialog,.lesson-dialog,.animation-dialog{width:100%;max-width:none;max-height:100dvh;height:100dvh;margin:0;border-radius:0;padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom)}
  .session-dialog{overflow-y:auto}
  .session-form{padding:25px 20px 24px}
  .quiz-shell{height:calc(100dvh - env(safe-area-inset-top) - env(safe-area-inset-bottom));max-height:none}
  .quiz-body{flex:1;min-height:0;overscroll-behavior:contain}
  .quiz-bottom{position:sticky;bottom:0;background:#fff;padding-bottom:calc(12px + env(safe-area-inset-bottom));justify-content:space-between}
  .quiz-bottom .quit-button,.quiz-bottom .next-button{min-height:44px}
  .lesson-dialog,.animation-dialog{overflow-y:auto;overscroll-behavior:contain}
  .lesson-shell,.animation-shell{padding-top:calc(20px + env(safe-area-inset-top))}
  .lesson-actions{position:sticky;bottom:0;background:#fff;padding:8px 0 calc(8px + env(safe-area-inset-bottom));z-index:2}
  .lesson-actions button,.animation-controls button,.animation-start{min-height:44px}
  .animation-controls{flex-wrap:wrap}
  .animation-controls>*{flex:1 1 30%;text-align:center}
  .animation-controls .video-watch-status{flex-basis:100%;max-width:none;text-align:center}
  .film-controls button{min-height:44px;touch-action:manipulation}
}
@media(max-width:390px){
  .content-wrap{padding-left:11px;padding-right:11px}
  .topbar{padding-left:11px;padding-right:11px}
  .user-avatar,.chevron{display:none}
  .welcome-row h1{font-size:24px}
  .case-cover{min-height:410px;padding-left:13px;padding-right:13px}
  .cover-copy h3{font-size:20px}
  .cover-illustration{right:-8px;transform:scale(.64);transform-origin:right bottom}
  .cover-cta-row{gap:8px}
  .cover-cta-row .start-button{padding-left:10px;padding-right:10px}
  .result-score{gap:14px;padding:12px}
}
.session-dialog{width:min(560px,calc(100% - 28px));max-height:94dvh;overflow-y:auto}.session-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 14px}.session-field{min-width:0}.session-form input:not([type="checkbox"]),.session-form select{width:100%;height:40px;border:1px solid #dfe7df;border-radius:7px;padding:0 11px;margin-bottom:12px;background:#fff;color:#43544a;font:14px "DM Sans","Noto Sans TC",sans-serif;outline:none}.session-form input:focus,.session-form select:focus{border-color:#83a88c;box-shadow:0 0 0 3px #eef5ed}.interaction-actions{margin-top:12px;padding-top:10px;border-top:1px solid #e8eee8;color:#7b897e;font-size:13px}.interaction-actions>div{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}.interaction-button{border:1px solid #cfdccf;border-radius:999px;background:#f7faf6;color:#4b6b58;padding:7px 12px;font:600 13px "Noto Sans TC",sans-serif;cursor:pointer;transition:background .18s,transform .18s}.interaction-button:hover{background:#e9f2e8;transform:translateY(-1px)}.interaction-button:disabled{opacity:.55;cursor:default;transform:none}.interaction-reply{display:grid;gap:4px;margin-top:10px;padding:10px 12px;border-radius:10px;background:#eef5ec;color:#4b5d50;font-size:14px;line-height:1.6}.interaction-reply strong{color:#607f69}
@media(max-width:720px){.session-fields{grid-template-columns:1fr;gap:0}.session-dialog{max-height:92dvh}}

/* Wide landscape layout for the first-person quiz: keep the scene and choices visible together. */
@media (min-width: 720px) and (min-height: 500px) {
  .quiz-dialog {
    width: min(1240px, calc(100vw - 24px));
    height: min(920px, calc(100dvh - 12px));
    max-height: calc(100dvh - 12px);
    overflow: hidden;
  }
  .quiz-shell { height: 100%; max-height: none; }
  .quiz-top { flex: none; padding: 10px 20px 8px; }
  .quiz-progress-row { flex: none; padding: 8px 21px 5px; }
  .quiz-progress { flex: none; margin: 0 21px; }
  .quiz-body {
    flex: 1;
    min-height: 0;
    overflow: hidden;
    display: grid;
    grid-template-columns: minmax(270px, .92fr) minmax(360px, 1.08fr);
    grid-template-rows: auto auto auto auto minmax(0, 1fr) auto;
    grid-template-areas:
      "bar cue"
      "label brief"
      "scene title"
      "scene hint"
      "scene answers"
      "scene feedback";
    column-gap: 14px;
    row-gap: 6px;
    padding: 8px 12px;
  }
  .quiz-body > .first-person-bar { grid-area: bar; margin: 0; padding: 6px 9px; }
  .quiz-body > .patient-label { grid-area: label; align-self: center; }
  .quiz-body > .scenario-brief { grid-area: brief; align-self: center; margin: 0; padding: 6px 9px; font-size: 14px; line-height: 1.45; }
  .quiz-body > .scene-stage { grid-area: scene; min-height: 0; height: 100%; margin: 0; align-self: stretch; grid-template-columns: minmax(48px, 62px) minmax(0, 1fr) minmax(48px, 62px); gap: 6px; padding: 8px 6px 6px; }
  .quiz-body > .nurse-cue { grid-area: cue; align-self: center; margin: 0; }
  .quiz-body > #quizTitle { grid-area: title; align-self: end; font-size: 18px; line-height: 1.42; margin: 0; }
  .quiz-body > .question-hint { grid-area: hint; align-self: center; margin: 0; }
  .quiz-body > .answer-list { grid-area: answers; align-content: center; gap: 6px; min-height: 0; }
  .quiz-body > .answer-list .answer-option { padding: 7px 10px; font-size: 14px; line-height: 1.4; }
  .quiz-body > .feedback-box { grid-area: feedback; margin: 0; padding: 6px 9px; max-height: 92px; overflow: auto; }
  .quiz-bottom { flex: none; padding: 8px 21px; }
}

/* Put routine learning and animation narration beside the main visual on computer screens. */
@media (min-width: 900px) and (min-height: 560px) {
  .lesson-dialog, .animation-dialog {
    width: min(1260px, calc(100vw - 28px));
    height: min(900px, calc(100dvh - 16px));
    max-height: calc(100dvh - 16px);
    overflow: hidden;
  }
  .lesson-shell {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr);
    grid-template-rows: minmax(0, 1fr);
    gap: 24px;
    height: 100%;
    padding: 20px 24px;
    overflow: hidden;
  }
  .lesson-left, .lesson-right { min-width: 0; min-height: 0; display: flex; flex-direction: column; }
  .lesson-top { flex: none; }
  .lesson-top h2 { font-size: 23px; }
  .lesson-lead { flex: none; margin: 8px 0 12px; line-height: 1.6; }
  .lesson-progress { flex: none; }
  .lesson-counter { flex: none; margin: 8px 0 10px; }
  .lesson-card { flex: 1; min-height: 0; padding: 18px; grid-template-columns: 54px minmax(0, 1fr); gap: 14px; }
  .lesson-number { width: 48px; height: 48px; }
  .lesson-card h3 { font-size: 20px; }
  .lesson-card p { line-height: 1.65; }
  .lesson-focus { margin-top: 10px; padding: 9px 11px; line-height: 1.55; }
  .lesson-all-steps { flex: 1; align-content: center; justify-content: center; margin: 0 0 12px; padding: 3px 0; gap: 7px; }
  .lesson-chip { padding: 6px 8px; line-height: 1.4; }
  .lesson-error { flex: none; min-height: 0; }
  .lesson-actions { flex: none; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 8px; padding-top: 10px; }
  .lesson-actions > span { font-size: 14px; line-height: 1.45; }
  .animation-shell {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(320px, .8fr);
    gap: 18px;
    height: 100%;
    padding: 18px 22px;
    overflow: hidden;
  }
  .animation-left, .animation-right { min-width: 0; min-height: 0; display: flex; flex-direction: column; }
  .animation-right { justify-content: center; }
  .animation-head { flex: none; }
  .animation-head h2 { font-size: 23px; }
  .animation-lead { flex: none; margin: 7px 0 10px; line-height: 1.55; }
  .animation-meter { flex: none; }
  .animation-counter { flex: none; margin: 8px 0; }
  .original-film { flex: 1; min-height: 0; width: 100%; max-height: min(44dvh, 430px); align-self: center; }
  .film-controls { flex: none; grid-template-columns: auto auto minmax(36px, 1fr) auto auto; gap: 5px; margin: 8px 0 0; }
  .film-control { padding: 7px 8px; font-size: 14px; }
  .film-controls output { min-width: 66px; font-size: 14px; }
  .video-hint { flex: none; margin: 0 0 8px; font-size: 14px; line-height: 1.5; }
  .animation-dialogue { flex: none; margin: 0 0 8px; padding: 10px 12px; }
  .animation-dialogue p { font-size: 18px; line-height: 1.55; }
  .animation-action { flex: none; margin: 0 0 8px; padding: 10px 12px; }
  .animation-action p { line-height: 1.6; }
  .animation-controls { flex: none; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 6px; padding: 6px 0 8px; }
  .animation-controls .video-watch-status { font-size: 14px; }
  .animation-controls .start-button { min-height: 36px; padding: 0 10px; }
  .animation-footer { flex: none; align-items: center; gap: 8px; padding-top: 8px; }
  .animation-footer > span { font-size: 14px; line-height: 1.5; }
  .animation-start { white-space: normal; padding: 9px 10px; line-height: 1.4; }
  .animation-error { flex: none; min-height: 0; }
}