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@media(min-width:1500px){.slide{padding-top:58px;gap:38px}.lead{font-size:27px}.slide-content{max-width:1500px;width:100%;margin:0 auto}.row{padding:23px 0}}
@media(max-width:1050px){.slide{padding:34px 30px;gap:25px}.split,.cover,.script-layout,.quiz-layout{gap:30px}.rail{width:76px}.cover h1{font-size:65px}.lead{font-size:20px}.lab{gap:24px}.lab-screen{padding:22px}.equipment{gap:24px}.terms{grid-template-columns:repeat(3,1fr)}.row h3{min-width:135px}.route{gap:22px}.shortcuts{display:none}.two-ways{gap:35px}.extra-rows h3{min-width:180px}.quiz-option{font-size:18px}}
@media(max-width:760px){.app{min-height:100dvh;height:auto;grid-template-rows:64px 1fr 64px}header{height:64px;padding:0 16px;position:sticky;top:0}.brand{font-size:12px}.icon-btn{padding:8px}.top-actions .label{display:none}.rail{display:none}.workspace{min-height:calc(100dvh - 128px)}#stage{overflow:visible}.slide{padding:30px 22px;min-height:calc(100dvh - 128px);gap:25px}.slide-content{justify-content:flex-start}.slide-foot{font-size:12px;flex-wrap:wrap;gap:6px}.cover,.split,.split.wide-left,.lab,.two-ways,.equipment,.report,.script-layout,.quiz-layout{grid-template-columns:1fr;gap:28px}.cover{padding-top:15px}.cover h1{font-size:66px}.cover-subtitle{font-size:24px}.cover-image{height:280px}.cover figure{margin-top:10px}.cover-intro{font-size:17px}.workflow{grid-template-columns:1fr;gap:24px}.flow-col{padding-top:15px}.flow-col h3{margin-bottom:5px}.flow-item{padding:10px 0}.format-grid,.delivery-steps{grid-template-columns:1fr;gap:22px}.format-item{display:grid;grid-template-columns:60px 1fr;gap:15px}.format-item h3{margin:0;font-size:25px}.format-item p{grid-column:2;margin-bottom:0;font-size:18px}.format-item .large-num{grid-row:span 2;font-size:42px}.route{grid-template-columns:1fr;gap:20px}.route-step{display:grid;grid-template-columns:120px 1fr;gap:10px 20px;padding:20px 0}.route-step img{grid-row:2 / 4;height:100px;margin:0}.route-step .tag{grid-column:span 2;margin-bottom:0}.route-step p{margin:0;font-size:17px}.classification,.checklist{grid-template-columns:1fr}.terms{grid-template-columns:1fr 1fr;gap:0 14px}.term-btn b{font-size:19px;min-width:54px}.term-btn span{font-size:14px}.ethos-bottom{grid-template-columns:1fr;gap:10px}.quote{font-size:39px}.ethos-bottom p{font-size:19px}.row{gap:14px;flex-wrap:wrap}.row h3{min-width:0}.row p{flex-basis:100%;padding-left:42px;font-size:18px}.extra-rows .row h3{min-width:0}.index-grid{grid-template-columns:1fr}.index-btn{font-size:17px}dialog{padding:24px;max-width:94vw}.connection-table{font-size:16px}.connection-table td,.connection-table th{padding:12px 6px}.lab-screen{min-height:295px}.equipment-preview{min-height:280px}.equipment-preview img{height:180px}.role-detail{padding:0;border-left:0}.role-detail p{font-size:20px}.footer-left{gap:10px}.footer-right{gap:8px}footer{padding:0 14px;height:64px;position:sticky;bottom:0;background:var(--paper);z-index:9}.footer-left .section-label{display:none}#counter{font-size:13px;min-width:63px}.nav-btn{width:37px;height:37px}.distance-data output{font-size:32px}.script-lines p{font-size:19px}.script-lines p.current{font-size:23px}.quiz-layout{gap:20px}.quiz-option{font-size:18px}.report-screens{grid-template-columns:1fr}.photo{max-height:300px}.check-footer{align-items:start}.notes-body{font-size:18px}.help-grid{grid-template-columns:85px 1fr;font-size:16px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}
@media print{.app{display:block;height:auto;min-height:0}header,.rail,footer,dialog,#toast{display:none!important}.workspace,#stage{display:block;overflow:visible}.slide{display:flex!important;min-height:0;break-after:page;padding:30px;animation:none!important}.slide-content{min-height:450px}.slide-foot{margin-top:20px}.cover h1{font-size:75px}.slide.dark,.slide.orange{print-color-adjust:exact;-webkit-print-color-adjust:exact}.btn,.preset{print-color-adjust:exact}canvas{display:none}.slide-head h2{font-size:38px}}
/* Brighter classroom edition */
:root{--paper:#fff9ec;--ink:#19334a;--muted:#617583;--line:#d1dedb;--orange:#d64b2e;--green:#087d75;--white:#fffef8;--serif:"Yuanti TC","PingFang TC","Microsoft JhengHei",sans-serif;--nav-accent:#d64b2e}
body{background:#fff9ec}h1,h2,h3{font-weight:700}h2{letter-spacing:-.045em;font-size:clamp(32px,3.5vw,55px)}
header{background:#fffef8;border-bottom:2px solid #19334a}.brand{letter-spacing:.04em}.rec-dot{box-shadow:0 0 0 5px #ffe2b8}.top-actions{gap:10px}.icon-btn{border-radius:10px}.icon-btn:hover{background:#f9eabb}.rail{background:#fffef8;border-right:1px solid #cbdad8;gap:10px}.chapter-btn{border-radius:12px;border:0;position:relative;transition:background .18s,transform .18s}.chapter-btn .mono{font-weight:700}.chapter-btn.active{background:var(--nav-accent);color:white;box-shadow:0 4px 0 #19334a18}.chapter-btn:hover{transform:translateY(-2px)}
.slide{background-color:#fffaf0;background-image:radial-gradient(#19334a09 .8px,transparent .8px);background-size:18px 18px}.slide[data-chapter="器材"]{--orange:#007e83;background-color:#f4fbf7}.slide[data-chapter="團隊"]{--orange:#3462b2;background-color:#f2f7ff}.slide[data-chapter="交接"]{--orange:#087c71;background-color:#f4faf0}.slide-head h2:after{content:"";display:block;width:58px;height:6px;background:#f4c84e;border-radius:3px;margin-top:13px}.slide-head{gap:7px}.kicker{color:var(--orange);font-weight:700}.tag{font-weight:700}.slide.dark{background:#17394a;--muted:#c0d9d8;--line:#4d7280;--orange:#ffa16b}.slide.dark .kicker{color:#8edbcf}.slide.dark .accent{color:#ffbb6f}.slide.orange{background:#f5c747;color:#19334a;--muted:#5d562e;--line:#b49441;--orange:#be422b}.slide.orange .accent,.slide.orange .tag{color:#19334a}.slide.orange .kicker{color:#6a4a12}.slide.orange .lighter{color:#a9452d}
.btn{border-radius:11px;border-width:1.5px;transition:transform .15s,box-shadow .15s,background .15s}.btn:hover{transform:translateY(-2px);box-shadow:0 4px 0 #19334a16}.btn.primary{box-shadow:0 4px 0 #19334a25}.btn.primary:hover{background:var(--orange);filter:brightness(1.07)}.btn:active{transform:translateY(1px);box-shadow:none}.nav-btn{border-radius:50%;border:1.5px solid #a8bfc2;background:#fffef8}.nav-btn:hover{background:#ffe6a4}.progress-track{height:4px;top:-3px}#progress{background:var(--nav-accent)}footer{background:#fffef8}.cover h1{font-weight:800;letter-spacing:-.07em;font-size:clamp(52px,7vw,108px)}.cover-subtitle{color:#ffdc66;font-weight:700}.cover figure{transform:rotate(2deg);background:#fffef8;padding:9px 9px 12px;border-radius:4px;box-shadow:13px 14px 0 #0c2736}.cover figure:after{display:none}.cover-image{height:clamp(280px,40vh,450px)}.cover-caption{color:#335564;padding:10px 4px 0}.cover .btn.primary{background:#f8cc4c;color:#17394a;border-color:#f8cc4c}.cover .btn.primary:hover{background:#ffdb74}.cover-intro{font-size:20px}.slide.dark .slide-foot{color:#bdd3d1}
.tabs{gap:8px;border-bottom:0}.tabs button{border:1px solid var(--line);border-radius:999px;background:#fffef8;padding:10px 18px}.tabs button.active{color:#fff;border-color:var(--orange);background:var(--orange);box-shadow:0 3px 0 #19334a18}.photo{border-radius:16px;box-shadow:0 8px 0 #19334a0b}.row .num{font-weight:700}.callout{border-radius:0 14px 14px 0;background:#fff0ce;padding-right:20px}.dark .callout{background:#ffffff0b}.lab-screen,.distance-stage{border-radius:18px;background:#17394a;box-shadow:0 8px 0 #b9d8d3}.lab-screen .kicker{color:#9be0d2!important}.preset{border-radius:10px;background:#fffef8;transition:transform .15s}.preset.active{background:#ffe2c8;border-width:2px;font-weight:700}.preset:hover{transform:translateY(-2px)}.snr-number{color:#ffd26a}.meter-track,.meter-fill{border-radius:999px}.meter-fill.noise{background:#61aba2}.way{border-top-width:4px}.way:nth-child(1){border-color:#1aa698}.way:nth-child(2){border-color:#f0b336}.large-num{font-weight:700}.equipment-preview{border-radius:20px;border:2px solid #cddced;box-shadow:0 8px 0 #19334a0c}.equipment-btn{padding-left:12px;padding-right:12px;border-radius:9px}.equipment-btn.active{background:#dceafe;font-weight:700}.term-btn{border-radius:8px;padding-left:8px}.term-btn.active{background:#d6eee5}.format-item{border-top-width:4px}.format-item:nth-child(2){border-color:#eeb73b}.format-item:nth-child(3){border-color:#ef9775}.report-preview{border-radius:15px;border-top:5px solid #f0bd3b}.report-form input,.report-form textarea,.report-form select{border-radius:9px}.check-item input{width:23px;height:23px}.check-item:has(input:checked){background:#e4f2e455;border-radius:9px}.script-lines{padding-top:8px;padding-bottom:8px}.script-lines p.current{color:#bd442b;background:#ffe7b9;padding:7px 12px;border-radius:9px}.exercise-panel{border-top:4px solid #efbd40}.timer{font-weight:700!important}.video-links a:hover{background:#fff0d3;border-radius:8px;padding-left:8px}.flow-col{border-top-width:4px}.flow-col:nth-child(2){border-color:#189b8c}.flow-col:nth-child(3){border-color:#efbb40}.detail-strip{background:#fff3d9;border-radius:0 12px 12px 0;padding-top:14px;padding-bottom:14px}.classification-feedback{background:#ffffff0b;border-radius:0 14px 14px 0}.classify-btn.active{background:#ffffff0b;border-radius:9px;padding-left:10px}.quote{font-weight:700}.index-btn.current{color:var(--orange)}dialog{border-radius:18px;box-shadow:12px 12px 0 #19334a40}.close-btn{border-radius:50%}
.team-layout{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(260px,1fr);gap:28px;align-items:stretch}.team-map-panel{min-width:0;border:2px solid #c9d9eb;border-radius:20px;background:#fffef9;overflow:hidden;box-shadow:0 7px 0 #cedeed80}.map-controls{display:flex;gap:6px;flex-wrap:wrap;padding:14px 18px 0}.map-controls button{padding:8px 12px;border-radius:99px;font-size:14px;background:#eef3f6;color:#395770;border:1px solid transparent}.map-controls button.active{background:#193c56;color:white}.map-scroll{overflow-x:auto;scrollbar-width:thin}.team-map{display:block;width:100%;height:auto;min-width:580px;stroke:none;fill:none}.team-map text,.wiring-map text{font-family:var(--sans);fill:#19334a}.team-map .map-label{font-size:20px;font-weight:700}.team-map .map-caption{font-size:14px;fill:#627b87}.team-map .map-node{cursor:pointer;outline:none}.team-map .node-box{fill:white;stroke:#b8d0df;stroke-width:2;transition:fill .15s,stroke .15s}.team-map .map-node:hover .node-box,.team-map .map-node:focus .node-box{fill:#e8f6ff;stroke:#3462b2;stroke-width:3}.team-map .map-node.active .node-box{fill:#e1edff;stroke:#3462b2;stroke-width:3}.map-path{transition:opacity .25s;stroke-width:4;fill:none;stroke-linecap:round;stroke-linejoin:round}.map-path.audio{stroke:#089787}.map-path.monitor{stroke:#e77347;stroke-dasharray:8 7}.map-path.coordination{stroke:#4877c6;stroke-dasharray:3 8}.team-map[data-layer="layout"] .map-path{opacity:0}.team-map[data-layer="audio"] .map-path:not(.audio){opacity:.06}.team-map[data-layer="monitor"] .map-path.audio{opacity:.08}.team-map[data-layer="audio"] .map-path.audio{animation:line-arrive .7s ease-out}.map-legend{display:flex;gap:15px;flex-wrap:wrap;font-size:12px;padding:0 18px 12px;color:#56707e}.map-legend span:before{content:"";display:inline-block;width:18px;height:3px;background:#089787;vertical-align:middle;margin-right:6px}.map-legend span:nth-child(2):before{background:#e77347}.map-legend span:nth-child(3):before{background:#4877c6}.map-hint{font-size:12px;padding:0 18px 12px;color:#6b808c;margin:0}.team-role-detail{border-left:0;padding:4px 0;display:flex;flex-direction:column}.team-role-detail .role-tabs{flex-direction:row;border:0;gap:6px;margin-bottom:20px;flex-wrap:wrap}.team-role-detail .role-tab{font-family:var(--sans);font-size:14px;padding:9px 10px;border:1px solid #cbd8e8;border-radius:9px;gap:6px}.team-role-detail .role-tab.active{background:#3462b2;color:white;border-color:#3462b2}.team-role-detail h3{font-size:29px;line-height:1.5;margin:13px 0}.team-role-detail p{font-size:19px;line-height:1.85}.team-role-detail .role-question{background:#fff1bf;border-radius:12px;padding:14px;font-size:15px;margin-top:auto;line-height:1.7}.map-mini-caption{font-size:13px;color:#668096;margin:14px 0 0;line-height:1.7}.wiring-map-wrap{background:#fffefa;border:2px solid #cbddec;border-radius:20px;padding:10px 12px;overflow-x:auto;box-shadow:0 7px 0 #cddfea70}.wiring-map{display:block;width:100%;height:auto;min-width:730px;stroke:none;fill:none;max-height:390px}.wiring-map .wire-card{fill:#fff;stroke:#bad0df;stroke-width:2}.wiring-map .wire-heading{font-size:23px;font-weight:700}.wiring-map .wire-text{font-size:16px;fill:#637986}.wiring-map .wire{stroke:#0b9584;stroke-width:4;fill:none;stroke-linejoin:round}.wiring-map .monitor-wire{stroke:#de7248;stroke-width:3;stroke-dasharray:8 6;fill:none}.wire-note{display:flex;gap:25px;align-items:center;margin-top:22px;padding:15px 20px;background:#e2edf9;border-radius:13px;font-size:19px;line-height:1.7}.wire-note b{white-space:nowrap;color:#3462b2}.wiring-map .wire-small{font-size:14px;fill:#44687b}.live-dot{animation:rec-pulse 2.4s ease-in-out infinite}@keyframes rec-pulse{50%{box-shadow:0 0 0 7px #f2bf4b25}}@keyframes line-arrive{from{stroke-dashoffset:30;opacity:.1}to{stroke-dashoffset:0;opacity:1}}
@media(max-width:1150px) and (min-width:761px){.team-layout{grid-template-columns:minmax(0,1.5fr) minmax(235px,1fr);gap:20px}.team-role-detail h3{font-size:25px}.team-role-detail p{font-size:17px}.team-map{min-width:540px}.map-controls button{font-size:13px;padding:7px 9px}.team-role-detail .role-tab{font-size:13px}.team-role-detail .role-tabs{gap:4px}}
@media(max-width:760px){.cover h1{font-size:62px}.cover figure{margin-left:6px;margin-right:12px;transform:rotate(1.5deg)}.cover-intro{font-size:18px}.slide-head h2:after{margin-top:10px;width:44px;height:5px}.slide-head h2{font-size:32px}.tabs button{padding:9px 12px;font-size:14px}.team-layout{grid-template-columns:1fr;gap:26px}.team-map{min-width:620px}.team-role-detail h3{font-size:28px}.team-role-detail p{font-size:19px}.team-role-detail .role-tab{font-size:14px}.map-controls{padding:12px 10px 0;gap:4px}.map-controls button{font-size:12px;padding:8px 10px}.map-legend{padding-left:12px;gap:12px}.map-hint{padding-left:12px}.wiring-map-wrap{padding:6px}.wiring-map{min-width:790px;max-height:none}.wire-note{display:block;font-size:17px;padding:15px}.wire-note b{display:block;margin-bottom:8px}.callout{font-size:19px}.photo{padding:15px}.team-role-detail .role-tabs{margin-bottom:14px}.lab-screen,.distance-stage{box-shadow:0 6px 0 #b9d8d3}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}


/* Keep large teaching diagrams inside their own scrollable frame. */
.slide-content{min-width:0;max-width:100%}
.wiring-map-wrap{width:100%;max-width:100%;min-width:0;flex-shrink:0}
.team-map{max-height:355px}
@media(max-width:760px){.team-map{max-height:none}.wiring-map-wrap{align-self:stretch}.wire-note{min-width:0;max-width:100%;overflow-wrap:anywhere}}

.credit{font:11px/1.4 var(--sans);letter-spacing:.03em;color:var(--muted);text-align:center;white-space:nowrap}
@media(max-width:760px){.app{grid-template-rows:64px 1fr 80px}.workspace{min-height:calc(100dvh - 144px)}footer{height:80px;display:grid;grid-template-columns:1fr auto;grid-template-rows:30px 42px;align-content:center;gap:0 8px}.credit{grid-row:1;grid-column:1/-1;font-size:10px}.footer-left{grid-row:2;grid-column:1}.footer-right{grid-row:2;grid-column:2}}