:root{color-scheme:dark;font-family:Inter,"Noto Sans TC",system-ui,sans-serif;--ink:#f7fbf4;--deep:#052e31;--panel:rgba(4,42,43,.92);--mint:#50efd4;--gold:#ffd760;--coral:#ff7a67}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:#041f24;color:var(--ink)}html{overflow-y:auto!important;overscroll-behavior-y:auto!important}body[data-screen="main"]{height:auto!important;overflow-y:visible!important;overscroll-behavior-y:auto!important}button,select{font:inherit}button{cursor:pointer}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}[hidden]{display:none!important}.main-screen{width:min(100%,980px);margin:0 auto;padding:16px;min-height:min(760px,100svh);display:grid;grid-template-rows:72px 1fr;gap:14px;background:linear-gradient(rgba(2,35,36,.12),rgba(2,35,36,.72)),url('../../assets/animal-one-line-bg.webp') center/cover}.main-header{display:grid;grid-template-columns:76px minmax(0,1fr) 132px;align-items:center;gap:10px;padding:8px 10px;border:1px solid rgba(133,255,226,.35);border-radius:22px;background:rgba(2,28,32,.9)}.main-header>strong{text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:clamp(20px,4vw,28px)}.main-return{width:56px;height:56px;border-radius:15px;background:#fff;display:grid;grid-template-columns:1fr 24px;place-items:center;color:#1378a7;text-decoration:none;font-size:28px;font-weight:900}.main-return img{width:22px;height:22px;object-fit:contain}.locale-control select{width:100%;min-height:44px;border-radius:12px;background:#123c42;color:#fff;border:1px solid #498187;padding:0 8px}.main-hero{display:grid;grid-template-columns:minmax(280px,1fr) minmax(280px,.8fr);align-items:center;gap:24px;padding:20px;border-radius:28px;background:rgba(4,38,40,.72);backdrop-filter:blur(10px)}.main-poster{width:100%;aspect-ratio:1;object-fit:cover;border-radius:24px;box-shadow:0 18px 60px #001a1acc}.main-copy{display:grid;gap:14px}.main-copy small{color:#8dffe6;font-weight:800}.main-copy h1{font-size:clamp(40px,7vw,74px);line-height:.95;margin:0}.main-copy p{font-size:clamp(17px,2.3vw,22px);line-height:1.5;margin:0}.main-progress{padding:14px;border-radius:16px;background:rgba(2,22,27,.82);color:#b9fff1}.primary-action{min-height:58px;border:0;border-radius:16px;background:linear-gradient(#ffe888,#ffc638);color:#2f2600;font-weight:1000;font-size:20px;box-shadow:0 7px 0 #b77d00}.game-page-info{width:min(100%,980px);margin:0 auto}body[data-screen="stage"] .game-page-info,body[data-screen="battle"] .game-page-info{display:none!important}
.stage-screen,.battle-screen{position:fixed;inset:0;background:#041f24}.stage-canvas,.battle-canvas{position:relative;width:100%;height:calc(100svh - 56px);overflow:hidden;background:linear-gradient(rgba(2,35,38,.63),rgba(2,35,38,.74)),url('../../assets/animal-one-line-bg.webp') center/cover}.stage-header{position:absolute;z-index:3;left:18px;right:18px;top:18px;height:84px;display:grid;grid-template-columns:60px minmax(0,1fr) 72px;align-items:center;gap:12px;padding:10px 14px;border:1px solid rgba(121,250,222,.45);border-radius:22px;background:rgba(3,40,42,.92)}.stage-header button,.battle-header>button{width:52px;height:52px;border-radius:14px;border:1px solid #7afae1;background:#fff;color:#117baa;font-size:28px;font-weight:900}.stage-header div{display:grid;gap:3px}.stage-header strong{font-size:24px}.stage-header span{color:#a9e9dd}.stage-header img{width:70px;height:70px;object-fit:contain}.lesson-panel{position:absolute;left:24px;right:24px;top:120px;min-height:96px;padding:14px 18px;border-radius:18px;background:rgba(4,49,46,.9);border:1px solid rgba(255,226,105,.5);display:grid;gap:4px}.lesson-panel small{color:#ffe275;font-weight:900}.lesson-panel strong{font-size:22px}.lesson-panel p{margin:0;color:#d0eee8}.stage-rail{position:absolute;left:18px;right:18px;bottom:18px;height:330px;display:flex;gap:18px;align-items:center;overflow-x:auto;overflow-y:hidden;padding:28px calc(50% - 132px);scroll-snap-type:x mandatory;touch-action:pan-x}.stage-card{flex:0 0 264px;height:208px;scroll-snap-align:center;border-radius:24px;border:2px solid rgba(149,255,230,.36);background:linear-gradient(rgba(2,45,44,.5),rgba(2,30,33,.95)),url('../../assets/animal-one-line-cover.webp') center/cover;color:white;padding:16px;text-align:left;display:grid;grid-template-rows:auto 1fr auto;box-shadow:0 18px 40px #001a1a80}.stage-card.selected{border-color:#65ffd8;box-shadow:0 0 0 5px rgba(85,255,212,.2),0 18px 40px #001a1a}.stage-card.locked{filter:saturate(.2) brightness(.55)}.stage-card strong{font-size:34px}.stage-card small,.stage-card span{font-weight:800}.stage-ad-reserve,.battle-ad-reserve,.wp-stage-physical-reserve{height:56px;background:#162745}
.stage-screen,.battle-screen{position:fixed;inset:0;background:#041f24}.stage-canvas,.battle-canvas{position:relative;width:100%;height:calc(100svh - 56px);overflow:hidden;background:linear-gradient(rgba(2,35,38,.63),rgba(2,35,38,.74)),url('../../assets/animal-one-line-bg.webp') center/cover}.stage-header{position:absolute;z-index:3;left:18px;right:18px;top:18px;height:84px;display:grid;grid-template-columns:60px minmax(0,1fr) 72px;align-items:center;gap:12px;padding:10px 14px;border:1px solid rgba(121,250,222,.45);border-radius:22px;background:rgba(3,40,42,.92)}.stage-header button,.battle-header>button{width:52px;height:52px;border-radius:14px;border:1px solid #7afae1;background:#fff;color:#117baa;font-size:28px;font-weight:900}.stage-header div{display:grid;gap:3px}.stage-header strong{font-size:24px}.stage-header span{color:#a9e9dd}.stage-header img{width:70px;height:70px;object-fit:contain}.lesson-panel{position:absolute;left:24px;right:24px;top:120px;min-height:96px;padding:14px 18px;border-radius:18px;background:rgba(4,49,46,.9);border:1px solid rgba(255,226,105,.5);display:grid;gap:4px}.lesson-panel small{color:#ffe275;font-weight:900}.lesson-panel strong{font-size:22px}.lesson-panel p{margin:0;color:#d0eee8}.stage-rail{position:absolute;left:18px;right:18px;bottom:18px;height:330px;display:flex;gap:18px;align-items:center;overflow-x:auto;overflow-y:hidden;padding:28px calc(50% - 132px);scroll-snap-type:x mandatory;touch-action:pan-x}.stage-card{flex:0 0 264px;height:208px;scroll-snap-align:center;border-radius:24px;border:2px solid rgba(149,255,230,.36);background:linear-gradient(rgba(2,45,44,.5),rgba(2,30,33,.95)),url('../../assets/animal-one-line-cover.webp') center/cover;color:white;padding:16px;text-align:left;display:grid;grid-template-rows:auto 1fr auto;box-shadow:0 18px 40px #001a1a80}.stage-card.selected{border-color:#65ffd8;box-shadow:0 0 0 5px rgba(85,255,212,.2),0 18px 40px #001a1a}.stage-card.locked{filter:saturate(.2) brightness(.55)}.stage-card strong{font-size:34px}.stage-card small,.stage-card span{font-weight:800}.stage-ad-reserve,.battle-ad-reserve,.wp-stage-physical-reserve{height:56px;background:#162745}body[data-screen="battle"]>.sound-toggle{display:none!important}
.battle-canvas{display:grid;grid-template-rows:82px 52px minmax(0,1fr) 54px 70px;gap:8px;padding:10px;background:linear-gradient(rgba(1,26,29,.72),rgba(1,26,29,.78)),url('../../assets/animal-one-line-bg.webp') center/cover}.battle-header{display:grid;grid-template-columns:56px minmax(0,1fr) 92px 92px;align-items:center;gap:10px;padding:8px 12px;border:1px solid rgba(118,249,221,.38);border-radius:18px;background:rgba(2,34,37,.92)}.battle-progress{display:grid;gap:6px}.battle-progress>div{height:10px;background:#12383b;border-radius:999px;overflow:hidden}.battle-progress i{display:block;width:0;height:100%;background:linear-gradient(90deg,#4df1d4,#ffe169);transition:width .1s}.battle-stat{text-align:center;display:grid}.battle-stat small{color:#9cded2}.objective-row{display:flex;align-items:center;justify-content:center;padding:8px 14px;border-radius:14px;background:rgba(5,56,52,.9);font-weight:800;color:#d8fff7;text-align:center}.trace-board{position:relative;min-height:0;border:1px solid rgba(145,255,226,.45);border-radius:24px;background:rgba(246,229,181,.9);overflow:hidden;touch-action:none;user-select:none}.trace-board::before{content:"";position:absolute;inset:0;background:url('../../assets/animal-one-line-bg.webp') center/cover;opacity:.22}.trace-board svg{position:relative;width:100%;height:100%;display:block;touch-action:none}.trail-border,.trail-path,.trail-progress{fill:none;stroke-linecap:round;stroke-linejoin:round}.trail-border{stroke:#f4ddb0;stroke-width:122}.trail-path{stroke:#0caeaa;stroke-width:94}.trail-progress{stroke:#a5fff0;stroke-width:30;stroke-dasharray:1;stroke-dashoffset:1;filter:url(#softGlow)}.start-seal{fill:#39e0c5;stroke:#fff0ae;stroke-width:10}.cursor-dot{fill:#fff;stroke:#23ddc4;stroke-width:8;filter:url(#softGlow)}.goal-seal circle{fill:#ffd759;stroke:#fff2a8;stroke-width:10;filter:url(#softGlow)}.goal-seal text{fill:#7a4c00;font-size:42px;font-weight:1000}.checkpoint{fill:#fff4b1;stroke:#f29d30;stroke-width:7}.checkpoint.done{fill:#5bf0d0;stroke:#fff}.checkpoint-label{fill:#6a4200;font-size:28px;font-weight:1000;pointer-events:none}.obstacle{filter:drop-shadow(0 12px 8px rgba(0,0,0,.28))}.hazard{filter:drop-shadow(0 0 12px #ff5674)}.battle-feedback{padding:8px 14px;border-radius:14px;background:rgba(2,35,38,.92);display:flex;align-items:center;justify-content:space-between;gap:8px;overflow:hidden}.battle-feedback strong{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.battle-feedback span{color:#9edfd5;white-space:nowrap}.battle-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px}.battle-actions button,.result-actions button{border:1px solid #6bf3da;border-radius:15px;background:#0f5153;color:#fff;font-weight:900}.result-overlay{position:absolute;inset:0;z-index:10;display:grid;place-items:center;padding:18px;background:rgba(0,20,24,.78)}.result-card{width:min(620px,100%);max-height:100%;overflow:auto;padding:22px;border-radius:26px;background:linear-gradient(145deg,#0b5552,#052e36);border:2px solid #6ff4d9;text-align:center;display:grid;gap:12px}.result-card>img{width:108px;height:108px;object-fit:contain;margin:-12px auto -16px}.result-card h2,.result-card p{margin:0}.result-stars{font-size:38px;color:#ffd963;letter-spacing:8px}.skill-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.skill-grid>div{padding:10px;border-radius:14px;background:#073c40;display:grid;gap:4px}.skill-grid small{color:#9fe5d8}.result-actions{display:grid;grid-template-columns:1fr 1fr 1.2fr;gap:10px;min-height:58px}.result-actions .primary-action{color:#2d2500;background:linear-gradient(#ffe888,#ffc638);border-color:#ffe169}.tutorial-overlay{position:fixed;inset:0;z-index:30;display:grid;place-items:center;padding:20px;background:rgba(0,15,18,.82)}.tutorial-card{position:relative;width:min(520px,100%);padding:24px;border-radius:26px;background:#075253;border:2px solid #72f4dc;display:grid;gap:14px}.tutorial-card>img{width:120px;height:120px;object-fit:contain;margin:auto}.tutorial-card h2{margin:0;text-align:center}.tutorial-card li{margin:8px 0}.tutorial-card>button:first-child{position:absolute;right:12px;top:12px;width:42px;height:42px;border-radius:50%;border:0;background:#fff;color:#12616a;font-size:24px}.tutorial-card .primary-action{width:100%}
@media(max-width:700px){.main-screen{padding:8px;grid-template-rows:68px auto}.main-header{grid-template-columns:62px minmax(0,1fr) 112px;padding:6px}.main-return{width:52px;height:52px}.main-hero{grid-template-columns:1fr;padding:12px;gap:12px}.main-poster{width:min(100%,340px);margin:auto}.main-copy h1{font-size:38px}.main-copy{gap:9px}.stage-header{left:8px;right:8px;top:8px}.lesson-panel{left:10px;right:10px;top:108px}.stage-rail{left:4px;right:4px;bottom:8px;height:300px}.battle-canvas{grid-template-rows:72px 48px minmax(0,1fr) 48px 62px;padding:6px;gap:6px}.battle-header{grid-template-columns:50px minmax(0,1fr) 70px 70px;padding:5px}.battle-header>button{width:46px;height:46px}.battle-stat small{font-size:11px}.skill-grid{grid-template-columns:1fr}.result-actions{grid-template-columns:1fr 1fr}.result-actions .primary-action{grid-column:1/-1}.result-card{padding:16px}.result-card>img{width:86px;height:86px}.battle-feedback{font-size:13px}}
@media(max-height:480px) and (orientation:landscape){.stage-header{height:64px;grid-template-columns:48px 1fr 54px}.stage-header button{width:44px;height:44px}.stage-header img{width:52px;height:52px}.lesson-panel{top:78px;left:8px;right:auto;width:36%;min-height:80px;padding:9px}.stage-rail{left:38%;top:76px;bottom:4px;height:auto;padding-block:8px}.stage-card{height:180px}.battle-canvas{grid-template-columns:minmax(0,1fr) 230px;grid-template-rows:58px 42px minmax(0,1fr) 44px;grid-template-areas:"head head" "objective side" "board side" "feedback side";gap:4px;padding:4px}.battle-header{grid-area:head}.objective-row{grid-area:objective}.trace-board{grid-area:board}.battle-feedback{grid-area:feedback}.battle-actions{grid-area:side;grid-template-columns:1fr;align-content:center}.result-card{width:min(760px,96%);grid-template-columns:110px 1fr;grid-template-areas:"img title" "img stars" "text skills" "best actions";gap:6px;padding:10px}.result-card>img{grid-area:img}.result-card h2{grid-area:title}.result-stars{grid-area:stars}.result-card>p:not(.best-text){grid-area:text}.skill-grid{grid-area:skills;grid-template-columns:repeat(3,1fr)}.best-text{grid-area:best}.result-actions{grid-area:actions}}
.stage-header button{width:48px;height:48px}.battle-header>button{width:46px;height:46px}.trail-guide{fill:none;stroke:#fff3ae;stroke-width:8;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:3 4;opacity:0;transition:opacity .2s;filter:url(#softGlow)}.trail-guide.visible{opacity:.72}
.battle-leave-overlay{position:absolute;inset:0;z-index:20;display:grid;place-items:center;padding:18px;background:rgba(0,20,24,.82)}.battle-leave-card{width:min(480px,100%);display:grid;gap:16px;padding:22px;border:2px solid #6ff4d9;border-radius:24px;background:linear-gradient(145deg,#0b5552,#052e36);box-shadow:0 20px 60px #001a1acc}.battle-leave-card h2,.battle-leave-card p{margin:0;text-align:center}.battle-leave-card>div{display:grid;grid-template-columns:1fr 1fr;gap:10px}.battle-leave-card button{min-height:52px;border:1px solid #6bf3da;border-radius:14px;background:#0f5153;color:#fff;font-weight:900}.battle-leave-card button:first-child{color:#2d2500;background:linear-gradient(#ffe888,#ffc638);border-color:#ffe169}.battle-leave-card button:focus-visible{outline:3px solid #fff;outline-offset:3px}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}

/* Grid-fill gameplay replaces the retired freehand corridor tracer. */
.trace-board{display:grid;place-items:center;padding:clamp(8px,1.8vmin,18px);background:linear-gradient(145deg,rgba(237,238,204,.98),rgba(203,224,185,.98));container-type:size}
.trace-board::before{opacity:.08}
.line-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(var(--cols),minmax(0,1fr));grid-template-rows:repeat(var(--rows),minmax(0,1fr));gap:clamp(5px,1.2vmin,12px);width:min(100cqw,calc(100cqh * var(--cols) / var(--rows)));height:min(100cqh,calc(100cqw * var(--rows) / var(--cols)));max-width:680px;max-height:680px;aspect-ratio:var(--cols)/var(--rows);touch-action:none}
.line-cell{position:relative;min-width:0;min-height:0;border-radius:clamp(10px,2vmin,20px);display:grid;place-items:center;font-size:clamp(18px,4vmin,34px);transition:background .12s,transform .12s,box-shadow .12s}
.line-cell.is-open{background:#f7f1d6;border:2px solid #c8c5a9;box-shadow:inset 0 -5px 0 rgba(87,92,68,.16),0 5px 12px rgba(30,55,42,.18)}
.line-cell.is-blocked{background:linear-gradient(135deg,#6f8791 0 50%,#566c79 50%);border:2px solid #81949c;box-shadow:inset 0 -6px 0 rgba(23,38,47,.28)}
.line-cell.is-visited{background:linear-gradient(145deg,#a6e25a,#67bb31);border-color:#e8ffc2;box-shadow:inset 0 -5px 0 rgba(43,111,18,.25),0 0 0 3px rgba(174,240,95,.3)}
.line-cell.is-current{transform:scale(.94);box-shadow:inset 0 0 0 4px #fff8b0,0 0 18px #cfff78}
.line-cell.is-start:not(.is-visited){background:#ffe17a;border-color:#fff4b2;animation:startPulse 1.15s ease-in-out infinite}
.line-cell.is-hint{animation:hintPulse .55s ease-in-out 2}
@keyframes startPulse{50%{box-shadow:0 0 0 7px rgba(255,222,94,.3),0 5px 12px rgba(30,55,42,.18)}}
@keyframes hintPulse{50%{transform:scale(.88);background:#fff08d;box-shadow:0 0 0 8px rgba(255,225,73,.35)}}
@media(max-width:700px){.line-grid{gap:6px}.trace-board{padding:6px}}
@media(max-height:480px) and (orientation:landscape){.line-grid{height:100%;width:auto;max-width:100%;aspect-ratio:var(--cols)/var(--rows)}.trace-board{padding:5px}.line-cell{border-radius:8px}}