:root{color-scheme:light;--paper:#f5f4f0;--ink:#252a36;--muted:#7b7d86;--line:#e0e0da;--violet:#7461b6;--accent:#c6b7f5;--night:#171c2d;--green:#a9dccb;--echo1:#bda8f6;--echo2:#7bc6d4;--echo3:#f2b88d;font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif;font-synthesis:none}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-size:14px}button,a,input{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer;color:inherit;border:1px solid var(--line);background:transparent;border-radius:8px;padding:10px 13px;transition:background .15s,transform .15s}button:hover:not(:disabled){background:#eae7f1}button:active:not(:disabled){transform:translateY(1px)}button:disabled{cursor:default;opacity:.4}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #9783d6;outline-offset:4px}button.primary{background:#7561ad;color:#fff;border-color:#7561ad;font-weight:600}button.primary:hover:not(:disabled){background:#645095}button kbd{margin-left:12px;font-size:10px;opacity:.6;border:1px solid currentColor;padding:1px 4px;border-radius:3px;font-family:inherit}h1,h2,h3,p{margin:0}.topbar{height:82px;margin:0 4.3%;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;text-decoration:none;color:var(--ink);gap:12px}.brand svg{width:30px;height:32px;fill:#7561ad}.brand svg circle{fill:var(--paper)}.brand strong{font-size:22px;letter-spacing:5px}.brand>span{font-size:10px;letter-spacing:2px;margin-left:6px;color:var(--muted)}.top-actions{display:flex;align-items:center;gap:32px}.local-badge{font-size:11px;color:var(--muted);letter-spacing:1px}.local-badge i{display:inline-block;width:5px;height:5px;border-radius:50%;background:#8ba998;margin-right:7px}.text-button{border:0;font-size:12px;padding:8px 0}.text-button span{margin-left:12px}main{max-width:1530px;margin:auto;padding:0 4.3%}.intro{display:flex;align-items:center;justify-content:space-between;padding:38px 0 30px}.eyebrow{font-size:9px;letter-spacing:2px;font-weight:600;color:var(--muted)}h1{font-weight:500;font-size:32px;letter-spacing:1px;margin:12px 0}.intro>div>p:last-child{color:var(--muted);font-size:12px;line-height:1.8}.intro-aside{display:flex;align-items:center;gap:17px;margin-right:10px}.orbit{font-family:Georgia,serif;font-size:45px;color:#a498c1;font-weight:300}.intro-aside p{font-size:11px!important;color:#98939f!important}.workspace{display:grid;grid-template-columns:200px minmax(440px,1fr) 222px;gap:24px;align-items:start}.chapters,.time-panel{padding-top:17px}.section-heading{display:flex;justify-content:space-between;align-items:center;font-size:10px;letter-spacing:1px;color:var(--muted);margin-bottom:20px}.section-heading>span:last-child{font-variant-numeric:tabular-nums}#levels{display:flex;flex-direction:column;gap:7px}.level-button{display:flex;align-items:center;width:100%;border:1px solid transparent;border-radius:8px;text-align:left;gap:13px;padding:15px 10px;background:transparent}.level-number{font-family:Georgia,serif;font-size:21px;color:#a3a2a9;min-width:22px}.level-button strong{display:block;font-size:12px;font-weight:500;line-height:1.4}.level-button small{display:block;font-size:9px;color:#93909a;margin-top:5px}.level-button.active{background:#eae5f1;border-color:#e3dbee}.level-button.active .level-number,.level-button.active strong{color:#6d579d}.level-complete{font-size:10px;color:#659585;margin-left:auto}.chapter-note{display:flex;align-items:flex-start;gap:12px;margin:30px 8px 20px;color:#a7a2b1;font-size:11px;line-height:1.9}.chapter-note>span{font-size:22px;line-height:1}.save-state{font-size:9px;color:#a09da7;margin:0 8px;line-height:1.7}.game-panel{background:#fff;border:1px solid #e5e3e1;border-radius:15px;padding:23px 24px 0;box-shadow:0 8px 30px #24213304;min-width:0}.stage-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.stage-heading h2{font-size:21px;font-weight:550;letter-spacing:.5px;margin-top:8px}.stage-heading .eyebrow{font-size:9px;color:#9483b8;letter-spacing:1.5px}.hint-button{border:0;font-size:10px;color:#8a7b9d;padding:8px 0;white-space:nowrap}.hint-button span{font-size:17px;margin-left:5px}.level-intro{font-size:11px;line-height:1.9;color:var(--muted);min-height:44px;margin:12px 0 10px}.hint-panel{font-size:11px;line-height:1.8;padding:12px;background:#f3eef9;border-radius:8px;color:#786492;margin-bottom:12px}.hint-panel button{display:block;border:0;font-size:10px;color:#786492;text-decoration:underline;padding:8px 0 0}.board-shell{position:relative;background:var(--night);border-radius:10px;overflow:hidden;color:#b8baca}.board-top,.board-bottom{display:flex;align-items:center;justify-content:space-between;margin:0 20px;height:38px;font-size:9px;color:#858a9e;letter-spacing:1px}.board-top{border-bottom:1px solid #ffffff09}.board-bottom{gap:18px;justify-content:flex-start;letter-spacing:0}.board-bottom button{margin-left:auto;border:0;padding:5px 0;font-size:9px;color:#a3a0b9}.board-bottom button:hover{background:transparent!important;color:#e2d6ff!important}.board-bottom i{width:6px;height:6px;display:inline-block;border-radius:50%;margin-right:6px}.player-dot{background:#f5f0de}.echo-dot{background:var(--accent)}#board{display:block;width:100%;aspect-ratio:1.65;touch-action:manipulation}.tile-floor{fill:#202638;stroke:#2c3143;stroke-width:.65}.tile-wall{fill:#303648;stroke:#3c4254;stroke-width:.65}.tile-click{cursor:pointer;fill:transparent}.tile-click:hover{fill:#ffffff0d}.grid-rail{fill:#74798e;font-size:8px;font-family:monospace}.ghost-shape{stroke-width:1.4;stroke-linejoin:round}.actor{transition:transform .13s ease-out}.echo-actor{opacity:.9}.map-label{font:9px "Segoe UI",sans-serif;letter-spacing:.2px;pointer-events:none}.door-label{font:9px "Segoe UI",sans-serif;font-weight:600}.echo-trail{fill:none;stroke-width:2;stroke-dasharray:2 6;stroke-linecap:round;opacity:.28;pointer-events:none}.move-controls{display:flex;gap:5px;align-items:center}.move-controls>div{display:flex;flex-direction:column;gap:4px}.move-controls button{width:30px;height:26px;padding:0;border-radius:5px;font-size:15px;border-color:#e3e1e9;color:#726782}.move-controls>button{height:32px}.move-controls .wait-control{width:auto;padding:0 10px;font-size:10px;margin-left:7px;height:35px}.wait-control kbd{font-size:9px;margin-left:4px}.action-strip{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:17px 0 12px}.action-strip>.primary{font-size:12px;padding:13px 17px}.action-strip>.primary>span{margin-right:6px}.feedback{font-size:10px;color:#8b8595;border-top:1px solid #efedf2;min-height:40px;line-height:1.6;padding:11px 0}.feedback.warning{color:#ab7755}.time-panel{padding-left:0}.tiny-orbit{font-size:19px;line-height:10px}.turn-display{display:flex;align-items:center;gap:15px;padding-bottom:20px;border-bottom:1px solid var(--line)}.turn-display>span{font-family:Georgia,serif;font-size:48px;line-height:1;color:#645674;font-variant-numeric:tabular-nums}.turn-display>div{font-size:10px;color:#776c85}.turn-display small{display:block;font-size:9px;color:#a59daa;margin-top:7px}.echo-list{padding-top:15px}.echo-card{border:1px solid #e2dce9;border-radius:8px;padding:12px;margin-bottom:10px;background:#ffffff60}.echo-card.empty{border-style:dashed;background:none;color:#a8a0b0}.echo-card-heading{display:flex;justify-content:space-between;align-items:center;font-size:10px}.echo-card-heading b{font-weight:500}.echo-card-heading small{font-size:9px;color:#9a8da9}.echo-card p{font-size:9px;line-height:1.7;color:#a097a8;margin-top:8px}.mini-timeline{display:flex;gap:3px;overflow:hidden;margin-top:12px;align-items:center;min-height:9px}.mini-timeline i{display:block;height:4px;min-width:2px;flex:1;background:#ded6e8;border-radius:2px}.mini-timeline i.done{background:var(--echo-color,#ac95d8)}.mini-timeline i.now{height:9px}.time-actions{display:flex;flex-direction:column;gap:7px;margin:18px 0 22px}.time-actions button{font-size:10px;display:flex;align-items:center;justify-content:space-between;text-align:left;border-color:#e2dfe7;padding:10px 12px}.time-actions button kbd{font-size:9px}.time-actions button:last-child{border:0;color:#9b909f;justify-content:center;font-size:9px}.rule-card{border-top:1px solid var(--line);padding-top:17px;color:#a097a6;font-size:10px}.rule-card>span{font-size:9px;letter-spacing:2px;color:#918698}.rule-card p{font-size:10px;line-height:1.8;margin-top:12px}footer{display:flex;justify-content:space-between;color:#a5a2aa;font-size:9px;line-height:1.7;padding:24px 0 28px;gap:15px}.footer-star{margin:0 10px;color:#b4a5cc}.win-panel{position:absolute;inset:0;background:#171c2dec;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:20px;backdrop-filter:blur(6px)}[hidden]{display:none!important}.win-symbol{font-size:38px;color:var(--green);margin-bottom:20px}.win-panel .eyebrow{color:#9b93b4;font-size:8px}.win-panel h3{color:#f0eee9;font-size:26px;letter-spacing:2px;font-weight:400;margin:15px 0}.win-panel>p:not(.eyebrow){font-size:11px;color:#a6a7bc;line-height:1.8}.win-panel .primary{margin-top:25px;font-size:11px;background:#bcaae8;border-color:#bcaae8;color:#242033;padding:12px 24px}.win-replay{border:0;color:#a6a0b6;font-size:10px;margin-top:10px}dialog{border:1px solid #e4dfea;background:#fbfaf8;border-radius:16px;color:var(--ink);padding:35px;width:min(520px,calc(100% - 32px));box-shadow:0 30px 100px #171c2d50}dialog::backdrop{background:#181c2e88;backdrop-filter:blur(5px)}dialog h2{font-size:24px;font-weight:500;margin:14px 0 25px}dialog>p:not(.eyebrow){font-size:12px;color:var(--muted);line-height:1.9}dialog>.primary{width:100%;margin-top:24px}.dialog-close{position:absolute;top:15px;right:18px;padding:0;width:28px;height:28px;border:0;color:#90869d;font-size:24px}.help-step{display:flex;gap:18px;margin-top:22px}.help-step>b{font-family:Georgia,serif;color:#b6a4d6;font-size:24px;font-weight:400}.help-step h3{font-size:13px;font-weight:500;margin-bottom:6px}.help-step p,.help-note{font-size:11px;line-height:1.9;color:#8b8296}.help-note{margin-top:24px;border-top:1px solid var(--line);padding-top:18px}.dialog-actions{display:flex;gap:10px;margin-top:25px;justify-content:flex-end}.dialog-actions button{font-size:11px}.plate-glow{opacity:.17}.star{fill:#e9cc87}.exit-label{fill:#a9dccb;font-size:9px;letter-spacing:1px}.echo-number{font:7px monospace;fill:var(--night);font-weight:bold}
@media(min-width:1450px){.workspace{grid-template-columns:215px minmax(500px,1fr) 230px;gap:35px}.intro{padding-top:43px;padding-bottom:35px}#board{aspect-ratio:1.6}.level-button{padding:17px 12px}.game-panel{padding:26px 28px 0}}
@media(max-width:1150px){.workspace{grid-template-columns:165px minmax(380px,1fr) 185px;gap:15px}main{padding:0 3%}.topbar{margin:0 3%}.game-panel{padding:20px 18px 0}.level-button{gap:8px;padding:15px 6px}.level-button strong{font-size:11px}.level-number{font-size:18px}.action-strip>.primary{padding:12px 10px}.action-strip>.primary kbd{display:none}.intro-aside{display:none}}
@media(max-width:950px){.workspace{grid-template-columns:155px minmax(340px,1fr)}.time-panel{grid-column:2;display:grid;grid-template-columns:1fr 1fr;gap:12px;padding-top:0}.time-panel>.section-heading{grid-column:1/-1;margin:8px 0 0}.turn-display{border:0;padding:5px 0}.echo-list{grid-column:1;padding:0}.time-actions{grid-column:2;grid-row:2/4;margin:0;align-self:start}.rule-card{display:none}.intro{padding-top:26px}.intro h1{font-size:28px}.topbar{height:68px}footer{font-size:8px}.local-badge{display:none}}
@media(max-width:620px){.topbar{height:65px;margin:0 5%}.brand strong{font-size:20px}.brand>span{font-size:8px;letter-spacing:1px;margin-left:0}.brand{gap:7px}.top-actions{gap:0}.text-button{font-size:10px}.text-button span{margin-left:3px}main{padding:0 4%}.intro{padding:23px 2px 22px}.intro .eyebrow{font-size:7px;letter-spacing:1.3px}.intro h1{font-size:25px;margin:10px 0}.intro>div>p:last-child{font-size:10px}.workspace{display:flex;flex-direction:column;gap:16px}.chapters{width:100%;padding:0}.chapters>.section-heading{margin-bottom:10px;font-size:9px}#levels{flex-direction:row;gap:6px}.level-button{display:flex;flex:1;min-width:0;justify-content:center;gap:0;padding:10px 0;border-color:#e5e0e9}.level-button>div{display:none}.level-number{min-width:0;font-size:19px}.level-complete{margin:0 0 0 3px;font-size:8px}.chapter-note,.save-state{display:none}.game-panel{width:100%;padding:18px 14px 0;border-radius:12px}.stage-heading h2{font-size:19px}.hint-button{font-size:9px}.level-intro{font-size:10px;margin-top:10px;min-height:36px}.board-top,.board-bottom{margin:0 12px;height:31px;font-size:8px}#board{aspect-ratio:1.38}.board-bottom{gap:10px}.board-bottom button{font-size:8px}.action-strip>.primary{font-size:11px;padding:12px 10px}.move-controls .wait-control{font-size:9px;padding:0 7px;margin-left:3px}.wait-control kbd{display:none}.move-controls button{width:28px}.time-panel{width:100%;display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:0 4px}.turn-display>span{font-size:38px}.time-panel>.section-heading{margin-top:0}.echo-card{padding:10px}.time-actions{margin-top:5px}footer{flex-direction:column;gap:5px;padding:20px 4px}.win-panel h3{font-size:23px}.win-symbol{margin-bottom:10px}.win-panel .primary{margin-top:15px}dialog{padding:28px 24px}.help-step{margin-top:18px}}
@media(min-width:951px){.topbar{height:64px}.intro{padding:19px 0 21px}.intro h1{font-size:28px;margin:10px 0}.intro .eyebrow{font-size:8px}.intro>div>p:last-child{font-size:11px}.game-panel{padding-top:18px}.stage-heading h2{font-size:20px;margin-top:6px}.level-intro{min-height:30px;margin:9px 0 7px}.board-top,.board-bottom{height:31px}#board{height:clamp(215px,calc(100dvh - 485px),390px);aspect-ratio:auto}.action-strip{padding:12px 0 9px}.feedback{min-height:36px;padding:9px 0}.level-button{padding-top:12px;padding-bottom:12px}.chapter-note{margin-top:20px}.section-heading{margin-bottom:16px}footer{padding-top:18px}}
@media(min-width:951px) and (max-height:780px){.chapter-note{display:none}.save-state{margin-top:20px}.rule-card p{font-size:9px}.rule-card{padding-top:12px}.time-actions{margin:15px 0}.intro-aside{display:none}}
.history-control{margin-top:15px;padding-bottom:3px}.history-control>label{display:flex;justify-content:space-between;font-size:9px;color:#92849e}.history-control input{width:100%;accent-color:#9d84c6;cursor:ew-resize;margin:10px 0 0;height:14px}.history-control input:disabled{opacity:.35;cursor:default}#history-actions{display:flex;gap:5px;margin-top:9px}#history-actions button{font-size:9px;padding:7px 8px;flex:1}#resume-here{background:#e9e1f2;color:#786197;border-color:#d9cae9}.plate-schedule{color:#8a759e!important;font-size:9px!important}.time-panel .echo-list{max-height:300px;overflow-y:auto}.time-panel .rule-card{font-size:9px}.time-panel .turn-display{padding-bottom:14px}
@media(min-width:951px){.topbar{height:56px}.intro{padding:12px 0 14px}.intro h1{font-size:26px;margin:8px 0}#board{height:clamp(230px,calc(100dvh - 450px),400px)}.time-panel .rule-card{display:none}.time-actions{margin:13px 0}.time-panel .echo-list{max-height:245px}.echo-card{padding:10px;margin-bottom:8px}.echo-card p{margin-top:7px}.time-panel .section-heading{margin-bottom:15px}}
@media(max-width:950px){.history-control{grid-column:1;grid-row:3;margin-top:0}.echo-list{grid-row:4}.time-actions{grid-row:2/5}.time-panel .echo-list{max-height:none}}
@media(max-width:620px){.move-controls button{width:36px;height:36px}.move-controls>button{height:40px}.move-controls .wait-control{height:40px}.action-strip>.primary{min-height:44px}.time-actions button{min-height:40px}.level-button{min-height:44px}.feedback{font-size:11px}.level-intro{font-size:11px}.hint-panel{font-size:12px;line-height:1.9}.history-control>label{font-size:10px}.echo-card-heading{font-size:11px}.plate-schedule{font-size:10px!important}}
.journey-reset{display:block;margin:15px auto 0;border:0;font-size:10px;color:#8e7e98}dialog{max-height:calc(100dvh - 32px);overflow-y:auto}
.storage-notice{display:flex;align-items:center;gap:16px;margin:16px 0;padding:14px 18px;border:1px solid #ddc6a5;border-radius:8px;background:#fff3df;color:#795832;font-size:12px;line-height:1.8}.storage-notice span{flex:1}.storage-notice button,.storage-notice a{flex-shrink:0;font-size:11px;color:#72502d}.storage-notice button{border-color:#c9aa81}.storage-notice a{padding:8px}#startup-notice{margin:20px 4.3%}.record-context{font-size:10px;color:#7e728e;text-align:right;line-height:1.6;padding:0 0 8px}.feedback{color:#776b86}.game-panel[inert],.time-panel[inert]{opacity:.65}
.storage-notice{position:sticky;top:8px;z-index:20;max-height:40dvh;overflow:auto}
@media(max-width:620px){.storage-notice{flex-wrap:wrap;gap:8px;padding:12px;font-size:12px}.storage-notice span{flex-basis:100%}.record-context{font-size:10px}.time-panel .echo-list{overflow:visible}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}}