:root{--paper:#f7f7f2;--ink:#191919;--red:#b63c32;--muted:#63635d;--line:#c9c9c1;--table:#e8e9e2;--serif:"Songti TC","Noto Serif TC",serif;--sans:"PingFang TC","Microsoft JhengHei",sans-serif;color-scheme:light}
*{box-sizing:border-box}html{scroll-behavior:smooth;scrollbar-gutter:stable}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.75 var(--sans);padding-inline:env(safe-area-inset-left) env(safe-area-inset-right)}body.modal-open{overflow:hidden}button,a,input{touch-action:manipulation;-webkit-tap-highlight-color:transparent}button{font:inherit;color:inherit;cursor:pointer}button:disabled{cursor:default;opacity:.45}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline;text-underline-offset:5px}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--red);outline-offset:4px}button,a{min-height:44px}p,h1,h2,h3,figure{margin:0}img{max-width:100%;height:auto;display:block}button{border-radius:0}[hidden]{display:none!important}.wrap{width:calc(100% - 96px);max-width:1440px;margin-inline:auto}.eyebrow{font-size:12px;font-weight:650;letter-spacing:.13em;color:var(--red)}.small,.meta{font-size:12px;color:var(--muted)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip{position:fixed;top:-100px;left:16px;z-index:50;background:var(--ink);color:white;padding:10px}.skip:focus{top:10px}
.masthead{display:flex;align-items:center;gap:32px;min-height:92px;border-bottom:2px solid var(--ink)}.brand{display:inline-flex;align-items:center;gap:14px}.brand:hover{text-decoration:none}.brand strong{font:600 43px/1.2 var(--serif);letter-spacing:.06em}.brand span{font-size:10px;line-height:1.7;letter-spacing:.19em;font-weight:700}.masthead-note{font-size:13px;color:var(--muted);border-left:1px solid var(--line);padding-left:28px}.back{margin-left:auto;display:flex;align-items:center;gap:22px;font-size:13px}.intro{display:flex;justify-content:space-between;align-items:flex-end;padding-block:30px 32px;gap:36px}.intro h1{font:600 clamp(36px,3.6vw,56px)/1.32 var(--serif);margin-top:12px;letter-spacing:.03em}.intro-note{max-width:360px;padding-bottom:3px}.intro-note p{font:400 18px/1.8 var(--serif);margin:13px 0}.edition{font-size:12px;letter-spacing:.05em;border-bottom:1px solid var(--line);padding-bottom:8px;display:inline-block}.lesson{scroll-margin-top:12px;border-top:1px solid var(--ink)}.lesson-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:12px;min-height:50px}.lesson-toolbar p{display:flex;gap:9px;align-items:center}.live-dot{width:6px;height:6px;background:var(--red);border-radius:100%}.text-button{border:0;background:transparent;padding:8px 12px;font-size:13px;min-height:44px}.text-button:not(:disabled):hover{text-decoration:underline;text-underline-offset:5px}.steps{list-style:none;padding:0;margin:0 0 22px;display:grid;grid-template-columns:repeat(7,minmax(0,1fr));border-block:1px solid var(--line)}.steps li{min-width:0}.steps button{display:flex;align-items:center;justify-content:center;gap:10px;padding:10px 8px;width:100%;background:transparent;border:0;min-height:55px;font-size:13px;opacity:1;color:#74746d;position:relative}.steps button span{font-size:11px}.steps button[aria-current="step"]{background:var(--ink);color:var(--paper)}.steps button.completed{color:var(--red)}.steps button:not(:disabled):hover{box-shadow:inset 0 -2px var(--red)}.classroom{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:32px;align-items:start}.table-column{min-width:0}.table-heading{display:flex;justify-content:space-between;gap:12px;font-size:10px;letter-spacing:.12em;margin-bottom:9px;color:var(--muted)}.table-heading>span:first-child{color:var(--red);font-size:12px;letter-spacing:.04em}.board{background:var(--table);border:1px solid #c9cec2;padding:20px;position:relative;isolation:isolate}.opponent{display:flex;align-items:center;justify-content:center;gap:25px;padding-bottom:18px;border-bottom:1px dashed #afb4a7}.opponent .card-mini{width:74px;flex:none}.opponent-copy{font-size:12px}.opponent-copy strong{display:block;font-size:16px;font-weight:500}.opponent-copy .small{display:block}.damage-indicators{display:flex;gap:6px;margin-top:6px}.damage-counter{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--red);color:var(--red);border-radius:50%;width:28px;height:28px;background:#fff7ee;font-size:12px;font-weight:700}.damage-empty{color:var(--muted);font-size:12px}.field{display:grid;grid-template-columns:1fr 1.6fr 1fr;gap:15px;align-items:center;padding-block:19px}.side-zone{font-size:12px;text-align:center;color:var(--muted)}.side-zone p+p{margin-top:6px}.prizes{font-size:28px;font-family:var(--serif);color:#575f50}.zone-button{background:#f4f4ee80;border:1px solid #b9c0b1;position:relative;min-width:0;transition:box-shadow 160ms,background 160ms;min-height:44px}.zone-button:hover{background:#fafaf4}.zone-label{font-size:11px;letter-spacing:.08em;display:block;color:#62695b}.active-zone{display:flex;align-items:center;flex-direction:column;gap:8px;padding:8px 8px 14px}.active-zone .card-image{width:100px;margin:auto;position:relative;z-index:2;box-shadow:0 3px 8px #0002}.energy-stack{display:flex;justify-content:center;margin-top:-4px;gap:5px;height:24px;overflow:hidden}.energy-stack img{width:40px;object-fit:cover;object-position:bottom}.energy-count{font-size:11px;line-height:1.6;display:block;color:var(--muted)}.active-tools{display:flex;justify-content:center;margin-top:2px}.active-tools button{font-size:12px;min-height:44px}.deck-zone{padding:18px 10px;min-height:116px;width:100%;background:#f7f7ef;border:1px solid #aaa;box-shadow:3px 3px 0 var(--table),4px 4px 0 #aaa}.deck-zone strong{display:block;font:400 29px/1.5 var(--serif)}.deck-zone small{display:block;font-size:11px}.discard{margin-top:12px}.bench-zone{display:flex;align-items:center;justify-content:space-between;gap:10px;width:100%;text-align:left;padding:9px 14px;min-height:76px}.bench-zone .bench-copy{display:flex;flex-direction:column;font-size:13px;gap:2px}.bench-zone .bench-remaining{font-size:11px;color:var(--muted)}.bench-zone .card-mini{width:42px}.empty-slot{font-size:12px;color:#717769}.hand-area{margin-top:15px;border-top:1px solid #bfc4b7;padding-top:10px}.hand-heading{display:flex;align-items:center;justify-content:space-between}.hand-heading button{padding:0 4px;font-size:12px;border:0;background:transparent;min-height:44px}.hand-heading small{font-size:11px;color:var(--muted)}.hand-cards{display:flex;align-items:start;justify-content:center;gap:13px;min-height:116px}.hand-card{padding:0;background:transparent;border:0;width:70px;position:relative;flex:none}.hand-card .card-image{width:70px;box-shadow:1px 3px 5px #0002;transition:transform 180ms}.hand-card .hand-label{font-size:10px;line-height:1.6;display:block;margin-top:5px;white-space:nowrap}.hand-card[aria-pressed="true"] .card-image{transform:translateY(-6px);outline:3px solid var(--red);outline-offset:3px}.hand-card:hover .card-image{transform:translateY(-4px)}.zone-button.is-target,.hand-area.is-target{outline:2px solid var(--red);outline-offset:3px}.is-demo-target{box-shadow:0 0 0 4px #b63c3233!important;outline:2px solid var(--red)!important;outline-offset:3px}.zone-button.is-visited:after{content:'已看';position:absolute;top:4px;right:5px;font-size:10px;color:var(--red)}.attack-row{margin-top:15px;display:flex;align-items:center;justify-content:center;gap:10px}.attack-button{display:flex;align-items:center;justify-content:space-between;gap:24px;background:var(--ink);color:white;border:1px solid var(--ink);padding:8px 18px;min-height:50px;width:100%;max-width:300px}.attack-button span{font-size:12px}.attack-button strong{font:500 22px/1.2 var(--serif)}.attack-explain{font-size:12px;text-align:center;margin-top:6px;color:var(--muted)}.table-note{display:grid;grid-template-columns:70px 1fr;gap:10px;font-size:12px;color:var(--muted);padding:14px 0}.table-note>span{color:var(--red)}.guide{padding-top:6px;position:sticky;top:22px}.guide h2{font:600 30px/1.5 var(--serif);margin:13px 0 16px;outline:none}.step-intro{font-size:15px;color:#4c4c46}.task-status{font-size:12px;border-top:1px solid var(--line);margin-top:23px;padding-top:13px;min-height:45px}.feedback{font-size:14px;line-height:1.8;margin-top:8px;padding:13px 14px;border-left:2px solid var(--red);background:#eeeee7;min-height:84px}.feedback[data-tone="success"]{background:#e9ede3;border-left-color:#68755b}.guide-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:23px}.primary{display:inline-flex;align-items:center;justify-content:space-between;gap:18px;background:var(--red);color:white;border:1px solid var(--red);padding:11px 17px;min-height:48px;font-size:15px}.primary:hover{background:#963027}.guide-actions .primary{flex:1}.motion-option{display:flex;align-items:center;gap:8px;font-size:12px;min-height:44px;cursor:pointer;margin-top:7px}.motion-option input{width:18px;height:18px;accent-color:var(--red)}.rule-note{font-size:12px;color:var(--muted);border-top:1px solid var(--line);padding-top:17px;margin-top:16px}.source-link{font-size:12px;display:inline-flex;align-items:center;text-decoration:underline;text-underline-offset:4px}.quiz-panel{padding:5px 0}.quiz-panel h3{font:500 23px/1.6 var(--serif);margin-bottom:12px}.quiz-panel fieldset{border:0;border-bottom:1px solid var(--line);padding:16px 0;margin:0}.quiz-panel legend{font-size:15px;font-weight:600;padding:0}.quiz-options{display:grid;gap:8px;margin-top:8px}.quiz-option{border:1px solid #b9c0b1;background:#f8f8f2;text-align:left;padding:10px 12px;font-size:14px;min-height:48px}.quiz-option.correct{border-color:#5a6b4c;background:#edf1e7}.quiz-option.incorrect{border-color:var(--red)}.quiz-answer{font-size:12px;color:#4f6043;margin-top:7px}.recap{display:grid;grid-template-columns:1fr 1fr;gap:10px;border-bottom:1px solid var(--line);padding-bottom:15px;margin-bottom:14px}.recap div{background:#f4f4eb;padding:10px 12px}.recap strong{display:block;font:500 25px/1.5 var(--serif)}.recap span{font-size:12px}.completed-note{border-top:1px solid var(--line);padding-top:16px;margin-top:12px;font-size:14px}.accessories{padding-block:45px 20px;border-top:2px solid var(--ink);margin-top:35px;scroll-margin-top:20px}.section-top{display:flex;align-items:end;justify-content:space-between;gap:30px}.section-top h2,.notes h2{font:600 31px/1.5 var(--serif);margin-top:8px;outline:none}.section-top>p{font-size:13px;color:var(--muted)}.accessory-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:25px;margin-top:26px}.accessory-card{min-width:0;border-bottom:1px solid var(--line);padding-bottom:20px}.accessory-card .product-image{height:190px;background:#ecece5;display:flex;justify-content:center}.accessory-card img{height:100%;width:100%;object-fit:contain}.accessory-card .eyebrow{margin-top:16px}.accessory-card h3{font:600 23px/1.4 var(--serif);margin-block:7px}.accessory-card p{font-size:13px;color:var(--muted)}.accessory-card a{font-size:14px;color:var(--red);display:inline-flex;align-items:center;text-decoration:underline;text-underline-offset:4px;margin-top:8px}.accessory-disclosure{font-size:12px;color:var(--muted);margin-top:20px}.notes{display:grid;grid-template-columns:1fr 2.6fr;gap:35px;border-block:1px solid var(--line);padding-block:30px;margin-top:26px}.notes h2{font-size:25px;margin:0 0 10px}.notes p:not(.eyebrow){font-size:14px;color:var(--muted)}.notes p.small{font-size:12px}.notes-links{display:flex;gap:26px;flex-wrap:wrap;margin-block:8px}.notes-links a{font-size:13px;display:flex;align-items:center;text-decoration:underline;text-underline-offset:4px}.footer{display:flex;justify-content:space-between;align-items:center;min-height:70px;font-size:12px;color:var(--muted)}.footer a{display:flex;align-items:center}
dialog{border:1px solid var(--ink);background:var(--paper);color:var(--ink);padding:0;max-height:calc(100dvh - 48px);width:min(840px,calc(100% - 48px));max-width:none;overflow:hidden}dialog::backdrop{background:#191919ad;backdrop-filter:blur(3px)}#card-dialog[open]{display:flex;flex-direction:column}#card-dialog>header{display:flex;justify-content:space-between;align-items:center;padding:10px 22px;border-bottom:1px solid var(--line);flex:none}.card-body{padding:24px;overflow:auto;overscroll-behavior:contain;display:grid;grid-template-columns:1fr 1fr;gap:28px;min-height:0}.card-body .card-image{width:100%;max-height:520px;object-fit:contain}.card-body figcaption{font-size:11px;color:var(--muted);margin-top:8px}.card-body h2{font:600 29px/1.4 var(--serif);margin:7px 0 17px}.card-body .card-fact{display:block;width:100%;text-align:left;padding:13px 12px;margin-bottom:10px;border:1px solid var(--line);background:transparent;font-size:14px;min-height:60px}.card-fact strong{display:block;font-size:16px}.card-fact small{display:block;color:var(--muted);font-size:12px;line-height:1.75}.card-fact[aria-pressed="true"]{border-color:var(--red);background:#f1eae3}.card-body a{display:inline-flex;align-items:center;font-size:12px;text-decoration:underline}.dialog-footer{padding:10px 22px;border-top:1px solid var(--line);font-size:13px;flex:none;background:#eeeee7}.restart-dialog{max-width:430px;padding:25px}.restart-dialog h2{font:600 25px/1.4 var(--serif)}.restart-dialog p{margin-block:15px;font-size:14px}.restart-dialog>div{display:flex;justify-content:end;gap:10px}.image-fallback{padding:12px;background:#eeeee7;border:1px solid var(--line);display:flex;justify-content:center;align-items:center;flex-direction:column;text-align:center;min-height:85px;font-size:12px}.image-fallback small{display:block;font-size:11px}.image-fallback a{font-size:12px;min-height:44px;display:flex;align-items:center}.floating-card{position:fixed;z-index:90;pointer-events:none;object-fit:contain;box-shadow:0 5px 14px #0003}.no-script{padding:20px;border:1px solid var(--red)}
@media(min-width:1400px){.classroom{grid-template-columns:minmax(0,1fr) 360px;gap:45px}.field{grid-template-columns:1fr 1.6fr 1fr}.active-zone .card-image{width:115px}.hand-card,.hand-card .card-image{width:77px}.board{padding:20px 32px}}
@media(max-width:1099px){.wrap{width:calc(100% - 48px)}.classroom{grid-template-columns:minmax(0,1fr) 280px;gap:22px}.intro h1{font-size:40px}.intro-note{max-width:270px}.guide h2{font-size:26px}.steps button{gap:6px;font-size:12px}.board{padding:15px}.field{gap:10px;grid-template-columns:.8fr 1.3fr .8fr}.active-zone .card-image{width:90px}.hand-cards{gap:10px}.opponent{gap:15px}.masthead-note{font-size:12px}.accessory-card .product-image{height:150px}}
@media(max-width:759px){.wrap{width:calc(100% - 32px)}.masthead{min-height:75px;gap:14px}.brand strong{font-size:34px}.brand span{font-size:9px}.masthead-note{display:none}.back{font-size:12px;gap:14px}.intro{padding-block:24px;display:block}.intro h1{font-size:38px;line-height:1.3}.intro-note{max-width:none;display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px;margin-top:15px}.intro-note p{font:400 14px/1.6 var(--sans);margin:3px 0}.intro-note p br{display:none}.edition{font-size:11px;border:0;padding:0}.intro-note .meta{font-size:11px;display:block;width:100%}.lesson-toolbar{font-size:11px}.lesson-toolbar .text-button{font-size:12px;padding-inline:6px}.lesson-toolbar p{gap:6px}.steps{margin-bottom:14px}.steps button{font-size:11px;flex-direction:column;gap:2px;padding:8px 0;min-height:52px}.steps button span{font-size:10px}.classroom{display:flex;flex-direction:column;gap:14px}.table-column{width:100%}.guide{width:100%;position:static;display:flex;flex-direction:column;padding-top:0;border-top:1px solid var(--line)}.guide h2{font-size:25px;margin:7px 0}.guide>.eyebrow{margin-top:13px}.step-intro{font-size:14px}.task-status{margin-top:13px;padding-top:10px}.feedback{font-size:13px;min-height:0;margin-top:0;padding:10px 12px}.guide-actions{margin-top:14px}.guide-actions .primary{font-size:14px}.rule-note{margin-top:6px;padding-top:12px}.board{padding:13px}.opponent{padding-bottom:9px;gap:14px}.opponent .card-mini{width:44px}.opponent-copy{display:flex;align-items:center;gap:10px;font-size:11px;flex-wrap:wrap}.opponent-copy strong{font-size:13px}.opponent-copy>.small{display:none}.damage-indicators{margin-top:0}.damage-counter{width:24px;height:24px;font-size:11px}.field{padding-block:12px;gap:12px;grid-template-columns:.85fr 1.3fr .85fr}.active-zone{padding:7px 6px 8px;gap:4px}.active-zone .card-image{width:78px}.energy-stack{height:18px;gap:3px;margin-top:-1px}.energy-stack img{width:31px}.energy-count{font-size:10px}.zone-label{font-size:10px}.prizes{font-size:24px}.side-zone{font-size:11px}.deck-zone{min-height:99px;padding:12px 7px}.deck-zone strong{font-size:25px}.deck-zone small{font-size:10px}.discard{margin-top:6px}.active-tools button{min-height:44px;padding:5px 0;font-size:11px}.bench-zone{min-height:62px;padding:7px 10px}.bench-zone .card-mini{width:31px}.bench-zone .bench-copy{font-size:12px}.hand-area{margin-top:10px;padding-top:3px}.hand-cards{gap:14px;min-height:102px}.hand-card,.hand-card .card-image{width:58px}.hand-card .hand-label{font-size:10px}.hand-heading button{min-height:44px;font-size:11px}.table-heading{font-size:9px}.table-heading>span:first-child{font-size:11px}.table-note{font-size:12px;padding:10px 0 0;grid-template-columns:58px 1fr;gap:6px}.quiz-panel h3{font-size:22px}.quiz-panel legend{font-size:14px}.attack-row{margin-top:10px}.notes{display:block;padding-block:25px;margin-top:28px}.notes h2{font-size:23px;margin-top:10px}.notes p:not(.eyebrow){font-size:13px}.notes-links{gap:8px 20px}.notes-links a{font-size:12px}.footer{font-size:11px;gap:12px}.accessories{margin-top:25px;padding-top:28px}.section-top{display:block}.section-top h2{font-size:27px}.section-top>p{margin-top:12px}.accessory-list{grid-template-columns:1fr;gap:24px}.accessory-card{display:grid;grid-template-columns:100px minmax(0,1fr);gap:15px}.accessory-card .product-image{height:130px}.accessory-card .eyebrow{margin:0;font-size:11px}.accessory-card h3{font-size:21px}.accessory-card p{font-size:12px}.accessory-card a{font-size:13px}.card-body{display:block;padding:18px}.card-body .card-image{max-height:44dvh;margin:auto}.card-body h2{font-size:25px;margin-top:15px}.card-body .card-fact{margin-bottom:8px}.card-body figcaption{font-size:11px}#card-dialog{width:100%;height:100dvh;max-height:100dvh;margin:0;border:0}#card-dialog>header{padding:6px 16px;padding-top:max(6px,env(safe-area-inset-top))}.dialog-footer{padding:10px 16px max(10px,env(safe-area-inset-bottom));font-size:12px}.recap{gap:7px}.recap div{padding:8px}.recap strong{font-size:23px}}
@media(max-width:359px){.intro h1{font-size:33px}.steps button{font-size:10px}.board{padding:10px}.field{gap:8px;grid-template-columns:.8fr 1.3fr .8fr}.active-zone .card-image{width:68px}.hand-card,.hand-card .card-image{width:54px}.opponent-copy{gap:5px}.opponent{gap:10px}.opponent .card-mini{width:38px}.accessory-card{grid-template-columns:86px minmax(0,1fr)}.guide h2{font-size:24px}}
@media(max-height:600px) and (orientation:landscape){.guide{position:static}.intro{padding-block:20px}.intro h1{font-size:34px}.card-body{display:grid;grid-template-columns:.7fr 1fr;gap:20px}.card-body .card-image{max-height:none}.card-body h2{margin-top:0}#card-dialog{width:100%;height:100dvh;max-height:100dvh;margin:0;border:0}.dialog-footer{font-size:12px}.card-body{padding:18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}.hand-card:hover .card-image{transform:none}}html.static-motion{scroll-behavior:auto}.static-motion *{transition:none!important}.static-motion .hand-card:hover .card-image{transform:none}

.mobile-cue{display:none}@media(max-width:759px){.mobile-cue{display:block;position:sticky;top:0;z-index:6;background:var(--paper);border-block:1px solid var(--line);padding:8px 2px;margin-bottom:10px}.mobile-cue>span{font-size:11px;color:var(--red)}.mobile-cue p{font-size:12px;line-height:1.6}.table-column{position:relative}.hand-heading [data-inspect]{font-size:11px;padding-inline:4px}}

/* Keep original card colours visible while a demonstration temporarily locks input. */
.board button:disabled{opacity:1}.active-zone{width:100%}
@media(min-width:1100px){.intro{padding-block:22px 24px}.intro h1{font-size:44px;line-height:1.25}.opponent{padding-bottom:10px}.opponent .card-mini{width:48px}.board{padding:16px 26px}.field{padding-block:13px}.active-zone .card-image{width:88px}.bench-zone{min-height:62px}.hand-card,.hand-card .card-image{width:60px}.hand-cards{min-height:107px}.hand-area{margin-top:10px;padding-top:3px}}
@media(max-width:759px){.mobile-cue{display:grid;grid-template-columns:1fr auto;gap:0 10px}.mobile-cue>span{grid-column:1}.mobile-cue p{grid-column:1}.mobile-cue button{grid-column:2;grid-row:1/3;color:var(--red);padding-inline:4px;max-width:98px;font-size:12px}}

.steps .step-label{font-size:inherit}.steps .short-label{display:none}.card-fact:disabled{opacity:1}
@media(max-width:759px){.steps .step-label{display:none}.steps .short-label{display:inline;font-size:12px}.steps button{min-width:44px}}
@media(max-width:359px){.steps{margin-inline:-10px;width:calc(100% + 20px)}}

/* Focus is applied to independent regions; original card images stay untouched. */
.toolbar-controls{display:flex;gap:6px;align-items:center;flex:none}.toolbar-controls #focus-toggle{color:var(--red)}
[data-focus],.card-fact{transition:filter 180ms ease,opacity 180ms ease,box-shadow 180ms ease}
.focus-dim{filter:grayscale(1);opacity:.42}.focus-dim:focus-within{filter:none;opacity:1}
.focus-lit{opacity:1;filter:none}.focus-on [data-focus].focus-lit{outline:2px solid var(--red);outline-offset:3px}
.focus-on .hand-heading.focus-lit{outline:0}.focus-on .active-group.focus-lit{background:#f7f7f2;border-radius:2px}
.lesson-focus .intro,.lesson-focus .masthead,.lesson-focus .notes,.lesson-focus .footer{filter:grayscale(1);opacity:.35;transition:opacity 180ms}
.lesson-focus .masthead:focus-within,.lesson-focus .notes:focus-within,.lesson-focus .footer:focus-within{opacity:1;filter:none}
.step-complete #next{box-shadow:0 0 0 4px #b63c321b}.step-complete #demo{background:transparent;color:var(--red)}
.can-drag{touch-action:none;cursor:grab;user-select:none;-webkit-user-select:none}.can-drag img{-webkit-user-drag:none;user-select:none;-webkit-touch-callout:none}
.can-drag::after{content:'可拖曳';display:block;color:var(--red);font-size:10px;line-height:1.5;margin-top:3px}
.can-drag:active{cursor:grabbing}.hand-card.drag-source{opacity:.2!important}.drop-ready{outline:2px dashed var(--red)!important;outline-offset:4px;background:#fffdf5!important}.drop-hover{outline-style:solid!important;box-shadow:0 0 0 7px #b63c3222!important;background:#fff8e9!important}
.drag-card{position:fixed;z-index:100;pointer-events:none;box-shadow:0 14px 24px #19191940;transform:rotate(-2deg);overflow:hidden;background:var(--paper)}.drag-card img{width:100%;height:100%;object-fit:contain}.drag-fallback{display:grid;place-items:center;font-size:12px;border:1px solid var(--red)}
.floating-card{transform-origin:top left;background:var(--paper);overflow:visible;box-shadow:0 8px 18px #19191930}.floating-card>img{width:100%;height:100%;object-fit:contain}.floating-card .image-fallback{height:100%;min-height:0}
.flip-card{perspective:700px;box-shadow:none;background:transparent}.flip-inner{width:100%;height:100%;position:relative;transform-style:preserve-3d}.flip-back,.flip-front{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;box-shadow:0 5px 15px #0003}.flip-back{display:flex;flex-direction:column;justify-content:center;align-items:center;border:1px solid #a9aaa3;background:#d7d8cf;color:#55564e;font-size:12px}.flip-back small{font-size:9px}.flip-front{transform:rotateY(180deg);background:var(--paper)}.flip-front img{width:100%;height:100%;object-fit:contain}
.card-fact.focus-lit{border-color:var(--red);box-shadow:0 0 0 2px #b63c3225}.card-fact.focus-dim{opacity:.38}
.board[data-busy="true"] .can-drag{touch-action:manipulation;cursor:default}
@media(max-width:759px){
 .lesson-toolbar{flex-wrap:wrap;padding-block:4px;gap:0}.toolbar-controls{margin-left:auto}.toolbar-controls button{min-width:44px}
 .mobile-cue{display:flex;align-items:center;gap:10px;padding:8px 0;background:var(--paper);scroll-margin-top:0}
 .cue-copy{flex:1;min-width:0}.cue-copy>span{font-size:11px;color:var(--red)}.cue-copy p{font-size:12px;line-height:1.6}
 .cue-tools{display:flex;flex-direction:column;align-items:stretch;flex:0 0 76px}.mobile-cue .cue-tools button{min-width:76px;max-width:none;min-height:44px;padding:6px 4px;line-height:1.5;font-size:12px}
 .cue-tools .cue-next{border:1px solid var(--red);background:var(--red);color:white}.cue-practice{font-size:11px;color:var(--muted);text-align:center}
 .board.compact-practice{display:grid;grid-template-columns:minmax(0,1fr);gap:12px;padding:16px}
 .compact-practice .opponent{font-size:11px;padding:0 0 7px;gap:8px}.compact-practice .opponent>div:first-child{display:none}
 .compact-practice .prize-group,.compact-practice .deck-group{display:none}
 .compact-practice .field{display:block;padding:0}.compact-practice .active-zone{max-width:190px;margin:auto}.compact-practice .active-zone .card-image{width:76px}
 .compact-practice .active-tools{display:none}.compact-practice .hand-area{margin:0;padding:0}.compact-practice .hand-cards{min-height:120px;gap:24px;padding-top:7px}
 .compact-practice .hand-card,.compact-practice .hand-card .card-image{width:62px}.compact-practice .hand-heading{margin-bottom:4px}
 .compact-practice[data-step="3"] .active-zone{display:block;max-width:none;padding:6px 8px;background:transparent;border:0;font-size:11px}
 .compact-practice[data-step="3"] .active-zone>.card-image,.compact-practice[data-step="3"] .energy-stack{display:none}
 .compact-practice[data-step="3"] .active-zone .zone-label{display:inline;margin-right:8px}.compact-practice[data-step="3"] .active-zone .energy-count{display:inline}
 .compact-practice[data-step="3"] .bench-zone{min-height:96px}
 .compact-practice[data-step="4"] .bench-zone{min-height:44px;padding:4px 10px}.compact-practice[data-step="4"] .bench-zone .card-mini{display:none}.compact-practice[data-step="4"] .bench-copy{flex-direction:row;gap:10px}
 .can-drag::after{font-size:11px}.focus-on .hand-card.focus-lit{outline-offset:5px}
}
@media(max-height:600px) and (orientation:landscape){
 .mobile-cue{position:sticky;top:0;display:flex;padding:4px 0}.cue-copy{flex:1}.cue-copy p{font-size:11px;line-height:1.5}.cue-copy>span{font-size:10px}.cue-tools{flex-direction:row;flex-basis:156px;gap:4px}.cue-practice{display:none}
 .board.compact-practice{display:grid;grid-template-columns:1fr 1fr;gap:12px 28px;padding:12px 20px;align-items:center}
 .compact-practice .opponent,.compact-practice .prize-group,.compact-practice .deck-group{display:none}
 .compact-practice .hand-area{grid-column:1;grid-row:1/3;border:0;padding:0;margin:0}.compact-practice .hand-cards{min-height:110px;gap:20px}
 .compact-practice .hand-card,.compact-practice .hand-card .card-image{width:56px}
 .compact-practice .field{grid-column:2;grid-row:1;display:block;padding:0}.compact-practice .active-zone{max-width:170px;margin:auto}.compact-practice .active-zone .card-image{width:58px}.compact-practice .active-tools{display:none}
 .compact-practice .bench-zone{grid-column:2;grid-row:2;min-height:44px}
 .compact-practice[data-step="3"] .bench-zone{min-height:88px}.compact-practice[data-step="3"] .field{align-self:end}
 .compact-practice[data-step="4"] .bench-zone .card-mini{display:none}.compact-practice[data-step="4"] .bench-copy{flex-direction:row;gap:10px}
 .table-heading{margin-bottom:3px}.table-note{padding-top:5px}
}
@media(prefers-reduced-motion:reduce){.drag-card{transform:none}}.static-motion .drag-card{transform:none}

.step-complete #next{order:-1;flex-basis:100%}.step-complete #demo{flex:none;border:0;padding:8px 12px;min-height:44px}.step-complete #prev{margin-left:auto}
@media(max-width:759px){.compact-practice .hand-label{white-space:normal;min-height:32px}.compact-practice .can-drag::after{margin-top:0}}

.guide-preferences{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:0 8px;margin-top:7px}.guide-preferences .motion-option{margin:0}.guide-preferences #guide-focus{color:var(--red);font-size:12px}@media(max-width:759px){#guide-focus{display:none}}