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30px;overflow:visible;display:block}.slide-kicker{font-size:9px;margin-bottom:13px;letter-spacing:.15em}.slide h1,.slide.dense h1{font-size:30px;line-height:1.18;letter-spacing:-.7px}.slide-lead,.slide.dense .slide-lead{font-size:17px;line-height:1.6;margin-top:14px}.slide-content,.slide.dense .slide-content{margin-top:22px;display:flex;gap:16px}.content-grid,.content-grid.three,.content-grid.visual-layout,.goals-layout,.hook-content,.question-layout,.quiz-intro,.reflection-layout,.lab-layout,.cover-layout{display:grid;grid-template-columns:1fr;gap:17px}.content-grid.summary{grid-template-columns:1fr;grid-template-rows:none}.content-card,.slide.dense .content-card,.content-grid.three .content-card{padding:22px;border-radius:18px}.content-card h2,.slide.dense .content-card h2,.summary .content-card h2{font-size:22px;margin-bottom:12px}.content-card p,.content-grid.three .content-card p,.slide.dense .content-card p,.summary .content-card p{font-size:18px;line-height:1.6}.content-card .card-no{font-size:12px;margin-bottom:15px}.content-card .formula,.slide.dense .formula{font-size:23px;padding:13px;margin-top:16px;line-height:1.6}.table-panel{padding:14px}.data-table,.content-grid .table-panel .data-table{font-size:16px}.data-table th,.data-table td,.hook-content .data-table th,.hook-content .data-table td{font-size:15px;padding:11px 8px}.table-under{padding:3px}.table-under .data-table td,.table-under .data-table th{font-size:13px;padding:9px 5px}.table-panel{overflow-x:auto}.hook-question{font-size:18px;padding:19px}.hook-scene{height:170px}.hook-note{font-size:12px}.goal{padding:20px 17px;grid-template-columns:38px 1fr;gap:13px}.goal b{width:36px;height:36px;font-size:15px;border-radius:12px}.goal p{font-size:18px;line-height:1.6}.route-map{padding:23px}.route-map div{font-size:18px}.visual-panel{padding:16px}.visual-panel svg{max-height:none}.visual-caption{font-size:12px}.slide-credit{font-size:9px;gap:15px;margin-top:26px;line-height:1.5}.cover-layout{padding:15px 0}.cover-copy h1{font-size:43px;line-height:1.05;margin:20px 0}.cover-copy .slide-lead{font-size:18px}.cover-copy .slide-kicker{font-size:10px}.cover-copy .btn{font-size:17px;padding:13px 17px}.cover-tags{font-size:11px;margin:21px 0}.cover-art{max-width:430px;margin:25px auto 0}.cover-art:before{inset:-10px}.cover-art .cover-code{font-size:10px;margin:18px 0 0}.cover-hint{font-size:12px;line-height:1.5}.btn{font-size:16px;min-height:44px;padding:12px 17px}.btn.small{font-size:14px}.feedback,.slide.dense .feedback{font-size:16px;padding:16px;line-height:1.6}.formative-question,.slide.dense .formative-question{font-size:21px;line-height:1.5}.answer,.slide.dense .answer{font-size:17px;line-height:1.5;padding:14px 13px;min-height:56px}.answer b{width:27px;min-width:27px;height:27px;font-size:12px}.question-aside{padding:22px;gap:14px}.question-aside h2{font-size:21px}.question-aside p{font-size:16px}.question-aside small{font-size:13px}.question-aside .feedback{font-size:16px}.question-dots button{width:36px;height:36px}.question-input{font-size:21px}.matching-row{font-size:18px;grid-template-columns:1fr;gap:8px}.matching-row select{font-size:17px}.order-item{font-size:20px}.order-item button{height:37px;min-width:39px}.question-help{font-size:14px}.quiz-count{font-size:85px}.quiz-intro .content-card p{font-size:18px}.result-banner{padding:25px;gap:18px}.result-banner h2,.reflection-layout .result-banner h2{font-size:30px}.result-banner p,.reflection-layout .result-banner p{font-size:19px}.reflection-form p{font-size:18px;line-height:1.6}.reflection-form textarea{height:250px;font-size:18px;resize:vertical}.reflection-form small{font-size:12px}.lab-display{padding:13px}.lab-layout{gap:20px}.lab-plot{min-height:210px}.lab-plot svg{max-height:none;min-height:200px;height:auto}.lab-metrics{grid-template-columns:repeat(3,1fr);gap:6px}.lab-metrics div{padding:8px}.lab-metrics b{font-size:15px}.lab-metrics span{font-size:10px}.lab-caption{font-size:12px;line-height:1.5}.lab-controls{gap:18px}.lab-control label{font-size:16px}.lab-control input[type=range]{height:32px}.lab-control input[type=number]{font-size:17px;padding:8px}.lab-control textarea{height:120px;font-size:17px}.lab-control small{font-size:12px}.lab-tabs button{font-size:13px;padding:8px 10px}.lab-table-page .data-table th,.lab-table-page .data-table td{font-size:14px;padding:9px 6px}.lab-note-tab p{font-size:17px}.lab-note-tab textarea{font-size:18px;height:220px}.lab-error{font-size:17px;padding:18px}.contents-dialog{padding:20px;max-height:86dvh;overflow:auto}.contents-grid{grid-template-columns:1fr 1fr;gap:8px}.contents-grid button{font-size:11px;min-height:74px;padding:10px 9px}.toast{bottom:85px;font-size:13px;width:calc(100% - 30px);max-width:500px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}} 


/* player theme v7.1 */
.theme-toggle{display:inline-flex;align-items:center;gap:8px;border:1px solid #314454;border-radius:999px;background:#ffffff08;color:var(--ink);padding:8px 12px;font-size:11px;font-weight:700}.theme-toggle .theme-icons{width:20px;height:20px;border-radius:999px;display:grid;place-items:center;background:linear-gradient(135deg,#ffde79,#ffaf66);color:#6f4700}.player-theme [data-theme-label]{white-space:nowrap}
html[data-theme='dark'] .viewport{background:radial-gradient(ellipse at center,#142744,#060e1c)} html[data-theme='dark'] .slide{background:radial-gradient(ellipse at 90% 0,#274867c0,transparent 46%),radial-gradient(ellipse at 0 100%,#165d5170,transparent 45%),linear-gradient(135deg,#0a1a2d,#102238)}
html[data-theme='light']{--bg:#edf4ff;--panel:#ffffff;--panel2:#f6fbff;--ink:#20314f;--muted:#5e7591;--accent:#3baea0;--accent2:#6d8cff;--line:#c9d7ea;background:var(--bg)}
html[data-theme='light'] .player-top,html[data-theme='light'] .player-footer{background:rgba(255,255,255,.92);border-color:#d7e2f2}
html[data-theme='light'] .icon-button,html[data-theme='light'] .nav-btn,html[data-theme='light'] .theme-toggle{background:#fff;border-color:#d6e1f0;color:#43617f}
html[data-theme='light'] .top-progress{background:#dfe7f2}
html[data-theme='light'] .viewport{background:radial-gradient(circle at 50% 30%,#ffffff,#dfeaf8)}
html[data-theme='light'] .slide{background:radial-gradient(circle at 88% 8%,rgba(126,108,255,.16),transparent 25%),radial-gradient(circle at 10% 85%,rgba(89,214,190,.18),transparent 22%),linear-gradient(135deg,#ffffff,#f3f8ff 55%,#eef5ff)}
html[data-theme='light'] .slide:before{background:linear-gradient(rgba(86,103,146,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(86,103,146,.08) 1px,transparent 1px);background-size:40px 40px}
html[data-theme='light'] .player-brand span,html[data-theme='light'] #syncBadge,html[data-theme='light'] #navHint,html[data-theme='light'] .participant small{color:#6f86a0}
html[data-theme='light'] .position-btn b{color:#20314f}
html[data-theme='light'] .content-card,html[data-theme='light'] .visual-panel,html[data-theme='light'] .table-panel{background:linear-gradient(145deg,#ffffff,#f4f8ff);border-color:#d3dfef;box-shadow:0 10px 28px rgba(49,79,124,.08)}
html[data-theme='light'] .content-card p,html[data-theme='light'] .summary .content-card p,html[data-theme='light'] .card-stack .content-card p,html[data-theme='light'] .slide-lead,html[data-theme='light'] .visual-caption{color:#5c7390}
html[data-theme='light'] .content-card .formula{background:#f3f8ff;border-color:#c5d8ef;color:#2f736b}
html[data-theme='light'] .contents-dialog{background:#f8fbff;color:#22314f}
@media(max-width:900px){.player-theme [data-theme-label]{display:none}}