:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;font-synthesis:none;text-rendering:optimizelegibility;--canvas:#f7f8f5;--surface:#fff;--ink:#17191d;--muted:#626872;--quiet:#8b9199;--line:#d8dcd7;--board:#24272d;--grid:#3b4048;--cinnabar:#c83f49;--jade:#147a6d;--blue:#2667a9;--saffron:#e5ae2b;--board-size:clamp(240px, min(calc(100vw - 32px), calc(100dvh - 260px)), 560px);--radius:6px;letter-spacing:0;font-family:Aptos,Microsoft YaHei UI,Noto Sans SC,sans-serif}*{box-sizing:border-box;letter-spacing:0}html{background:var(--canvas);min-width:320px;min-height:100%}body{min-width:320px;min-height:100dvh;color:var(--ink);background-color:var(--canvas);background-image:url(/assets/paper-fiber.svg);background-repeat:repeat;margin:0;overflow-x:hidden}button,input{font:inherit}button{color:inherit}button:focus-visible,input:focus-visible,[tabindex]:focus-visible{outline-offset:3px;outline:3px solid #0b5d6b;box-shadow:0 0 0 2px #fff}button:disabled{cursor:not-allowed;opacity:.46}.app-frame{width:min(100%,1040px);min-height:100dvh;padding:8px 16px max(10px, env(safe-area-inset-bottom));margin:0 auto}.topbar{justify-content:space-between;align-items:center;height:56px;display:flex}.brand-lockup{align-items:center;gap:10px;min-width:0;display:flex}.brand-mark{flex:0 0 40px;width:40px;height:40px}.brand-type{min-width:0}.brand-type h1{margin:0;font-family:Georgia,Noto Serif SC,Songti SC,serif;font-size:21px;font-weight:800;line-height:1.05}.brand-type span{color:var(--muted);margin-top:3px;font-family:Consolas,Azeret Mono,monospace;font-size:12px;font-weight:700;line-height:1;display:block}.topbar-actions{gap:6px;display:flex}.icon-button{border-radius:var(--radius);cursor:pointer;background:0 0;border:1px solid #0000;place-items:center;width:48px;height:48px;padding:0;display:inline-grid}.icon-button:hover{border-color:var(--line);background:var(--surface)}.icon-button:active{transform:translateY(1px)}.game-layout{grid-template-areas:"hud""play""pad""storage""era";justify-items:center;gap:7px;display:grid}.playfield{width:var(--board-size);grid-area:play}.board-caption{height:22px;color:var(--muted);justify-content:space-between;align-items:flex-start;font-size:12px;font-weight:700;line-height:1;display:flex}.move-counter{text-align:right;font-variant-numeric:tabular-nums;min-width:74px;font-family:Consolas,Azeret Mono,monospace}.game-board{--board-gap:clamp(5px, 1.55%, 9px);aspect-ratio:1;gap:var(--board-gap);touch-action:none;background:var(--board);isolation:isolate;border:2px solid #191b20;border-radius:7px;grid-template-rows:repeat(4,minmax(0,1fr));width:100%;padding:clamp(7px,2.1%,12px);transition:border-color .12s,box-shadow .12s;display:grid;overflow:hidden;box-shadow:0 2px #121418,0 12px 34px #1f232824;container:board/inline-size}.game-board[aria-disabled=true]{cursor:wait}.game-board--invalid{animation:.21s ease-out invalid-outline}.board-cell{background-color:var(--grid);border:1px solid #4a5059;border-radius:4px;min-width:0;min-height:0;position:relative}.board-row{gap:var(--board-gap);grid-template-columns:repeat(4,minmax(0,1fr));min-height:0;display:grid}.board-cell:before,.board-cell:after{z-index:0;content:"";pointer-events:none;opacity:.42;background:#565c65;position:absolute}.board-cell:before{width:5px;height:1px;top:5px;left:5px}.board-cell:after{width:1px;height:5px;bottom:5px;right:5px}.tile{--tile-color:#fff;--tile-ink:#17191d;z-index:2;border:1px solid color-mix(in srgb, var(--tile-ink) 38%, transparent);min-width:0;color:var(--tile-ink);background:var(--tile-color);transform-origin:50%;will-change:transform;border-radius:4px;grid-template-rows:auto 1fr auto;place-items:center;padding:5px 4px 4px;display:grid;position:absolute;inset:-1px;overflow:hidden;box-shadow:inset 0 0 0 1px #ffffff59}.tile:before{z-index:-1;content:"";opacity:.15;border:1px solid;border-radius:50%;width:22px;height:22px;position:absolute;top:-8px;right:-8px}.tile--moving{z-index:6}.tile-value{z-index:2;font-variant-numeric:tabular-nums;text-overflow:clip;white-space:nowrap;max-width:100%;font-family:Consolas,Azeret Mono,monospace;font-size:17px;font-weight:800;line-height:1;overflow:hidden}.tile--deep .tile-value{font-size:14px}.tile--compact-value .tile-value{font-size:11px}.tile-art{z-index:1;object-fit:contain;-webkit-user-select:none;user-select:none;pointer-events:none;width:min(72%,52px);height:min(72%,52px);min-height:0}.tile-name{z-index:2;text-overflow:ellipsis;white-space:nowrap;max-width:100%;font-family:Georgia,Noto Serif SC,Songti SC,serif;font-size:12px;font-weight:800;line-height:1;overflow:hidden}.tile--asset-missing .tile-art{visibility:hidden}.tile--spawned{animation:.16s ease-out both tile-arrive}.tile--merged{animation:.19s cubic-bezier(.2,.75,.25,1) both tile-stamp}.tile--unlocked:after{content:"";border:2px solid;border-radius:3px;animation:.36s ease-out both unlock-stamp;position:absolute;inset:4px}.game-console{display:contents}.hud{width:var(--board-size);border-top:1px solid var(--ink);border-bottom:1px solid var(--line);grid-area:hud;grid-template-columns:minmax(0,.8fr) minmax(0,1.15fr) minmax(0,1.25fr);align-items:stretch;min-height:52px;display:grid}.hud-stat{border-right:1px solid var(--line);flex-direction:column;justify-content:center;min-width:0;padding:6px 9px 5px;display:flex}.hud-stat>span,.era-copy>span{color:var(--muted);font-size:12px;font-weight:700;line-height:1}.hud-stat strong{font-variant-numeric:tabular-nums;white-space:nowrap;align-items:baseline;gap:5px;min-width:0;margin-top:4px;font-family:Consolas,Azeret Mono,monospace;font-size:18px;line-height:1;display:flex}.hud-stat strong b{font-size:inherit;text-overflow:clip;overflow:hidden}.hud-stat strong small{color:var(--muted);text-overflow:ellipsis;font-family:Georgia,Noto Serif SC,Songti SC,serif;font-size:12px;overflow:hidden}.shift-meter{grid-template-columns:29px minmax(0,1fr) 5px;align-items:center;gap:6px;min-width:0;padding:5px 8px;display:grid;position:relative;overflow:hidden}.shift-icon{border:1px solid var(--line);width:29px;height:29px;color:var(--muted);border-radius:50%;place-items:center;display:grid}.shift-copy{flex-direction:column;gap:3px;min-width:0;display:flex}.shift-copy b{text-overflow:ellipsis;white-space:nowrap;font-size:12px;line-height:1;overflow:hidden}.shift-copy small{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:12px;line-height:1;overflow:hidden}.shift-signal{background:#c8ccc8;border-radius:2px;width:4px;height:24px}.shift-meter[data-shift=ready]{color:#5a3b00;background:#fff7d8}.shift-meter[data-shift=ready] .shift-icon{color:#725000;background:#ffe58f;border-color:#bd8a13}.shift-meter[data-shift=ready] .shift-copy small{color:#725000}.shift-meter[data-shift=ready] .shift-signal{background:var(--saffron);box-shadow:0 0 0 3px #e5ae2b29}.shift-meter--earned .shift-icon{animation:.36s ease-out orbit-earned}.era-display{width:var(--board-size);border-top:1px solid var(--line);border-bottom:1px solid var(--line);grid-area:era;align-items:center;min-height:82px;display:flex}.era-art{border-right:1px solid var(--line);flex:0 0 82px;place-items:center;width:82px;height:82px;padding:8px;display:grid}.era-art img{object-fit:contain;width:100%;height:100%}.era-art--missing:after{color:var(--muted);content:"◇";font-family:Georgia,Noto Serif SC,Songti SC,serif;font-size:28px}.era-art--missing img{display:none}.era-copy{flex:1;min-width:0;padding:8px 12px}.era-copy strong{align-items:baseline;gap:7px;margin-top:4px;display:flex}.era-copy strong b{font-variant-numeric:tabular-nums;font-family:Consolas,Azeret Mono,monospace;font-size:22px}.era-copy strong small{color:var(--muted);font-family:Georgia,Noto Serif SC,Songti SC,serif;font-size:13px;font-weight:800}.era-track{background:#dfe2dd;height:4px;margin-top:8px;position:relative}.era-track i{background:var(--blue);width:0;transition:width .18s;position:absolute;inset:0 auto 0 0}.era-track em{background:var(--cinnabar);width:2px;height:10px;position:absolute;top:-3px;right:0}.direction-pad{grid-area:pad;grid-template-rows:repeat(2,48px);grid-template-columns:repeat(3,48px);grid-template-areas:".up.""left down right";gap:8px;width:160px;height:104px;display:grid}.direction-pad button{border-radius:var(--radius);color:#2d3238;background:var(--surface);cursor:pointer;border:1px solid #bfc4c0;place-items:center;width:48px;height:48px;padding:0;display:grid;box-shadow:0 2px #c9cdc9}.direction-pad button[data-direction=up]{grid-area:up}.direction-pad button[data-direction=left]{grid-area:left}.direction-pad button[data-direction=down]{grid-area:down}.direction-pad button[data-direction=right]{grid-area:right}.direction-pad button:hover:not(:disabled){color:var(--blue);border-color:#7a9dbc}.direction-pad button:active:not(:disabled){box-shadow:none;transform:translateY(2px)}.storage-status{min-height:20px;color:var(--muted);grid-area:storage;justify-content:center;align-items:center;gap:6px;font-size:12px;font-weight:700;display:flex}.storage-status[data-storage-tone=good]{color:var(--jade)}.storage-status[data-storage-tone=warning]{color:#9a420f}.storage-status--saving [data-storage-icon]{animation:.9s ease-in-out infinite storage-pulse}.game-dialog{width:min(100vw - 32px,430px);max-height:calc(100dvh - 32px);color:var(--ink);background:var(--surface);border:1px solid #b9beba;border-radius:8px;padding:0;overflow:auto;box-shadow:0 24px 70px #181b1f47}.game-dialog::backdrop{background:#191c209e}.dialog-body{padding:24px}.dialog-emblem{width:44px;height:44px;color:var(--cinnabar);background:#fff4f3;border:1px solid #e1b8b9;border-radius:50%;place-items:center;margin-bottom:18px;display:grid}.dialog-emblem--recovery{color:var(--blue);background:#eef6fc;border-color:#b6cee3}.dialog-eyebrow{color:var(--muted);font-family:Consolas,Azeret Mono,monospace;font-size:12px;font-weight:700;display:block}.dialog-body h2{margin:7px 0 0;font-family:Georgia,Noto Serif SC,Songti SC,serif;font-size:25px;line-height:1.2}.dialog-body p{color:var(--muted);margin:12px 0 0;font-size:14px;line-height:1.65}.dialog-actions{justify-content:flex-end;gap:9px;margin-top:24px;display:flex}.text-button{border-radius:var(--radius);cursor:pointer;border:1px solid #0000;min-height:48px;padding:0 16px;font-size:14px;font-weight:750}.text-button--quiet{border-color:var(--line);background:#f5f6f3}.text-button--primary{color:#fff;background:#1f5e56}.text-button--danger{color:#fff;background:#a92f39}.text-button:hover{filter:brightness(.96)}.dialog-header{justify-content:space-between;align-items:flex-start;display:flex}.dialog-header h2{margin-top:5px}.settings-list{border-top:1px solid var(--line);margin-top:20px}.setting-row{border-bottom:1px solid var(--line);cursor:pointer;justify-content:space-between;align-items:center;min-height:58px;display:flex;position:relative}.setting-label{align-items:center;gap:10px;display:flex}.setting-label i{width:20px;height:20px;color:var(--muted);place-items:center;display:grid}.setting-label b{font-size:14px}.setting-row input{opacity:0;width:1px;height:1px;position:absolute;overflow:hidden}.switch-control{background:#e7e9e6;border:1px solid #aeb4af;border-radius:13px;align-items:center;width:44px;height:25px;padding:3px;transition:background 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strong{font-variant-numeric:tabular-nums;overflow-wrap:anywhere;max-width:100%;margin-top:5px;font-family:Consolas,Azeret Mono,monospace;font-size:16px;line-height:1.25;display:block;overflow:hidden}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;padding:0;position:absolute;top:0;left:0;overflow:hidden}@container board (width>=390px){.tile{padding:9px 7px 7px}.tile-value{font-size:27px}.tile--deep .tile-value{font-size:20px}.tile--compact-value .tile-value{font-size:16px}.tile-art{width:min(78%,76px);height:min(78%,76px)}.tile-name{font-size:12px}}@media (min-width:640px) and (max-width:959px){.app-frame{padding-top:14px}.topbar{width:min(100%,700px);height:62px;margin:0 auto}.brand-mark{flex-basis:44px;width:44px;height:44px}.brand-type h1{font-size:24px}}@media (min-width:480px){.result-stats{grid-template-columns:repeat(4,minmax(0,1fr))}.result-stats div:nth-child(2n){border-right:1px solid var(--line)}.result-stats div:nth-child(-n+2){border-bottom:0}.result-stats div:last-child{border-right:0}}@media (min-width:960px){:root{--board-size:min(560px, calc(100dvh - 136px))}.app-frame{grid-template-rows:66px minmax(0,1fr);min-height:100dvh;padding:14px 20px 18px;display:grid}.topbar{border-bottom:1px solid var(--line);height:66px}.brand-mark{flex-basis:46px;width:46px;height:46px}.brand-type h1{font-size:25px}.game-layout{grid-template-columns:var(--board-size) 292px;grid-template-areas:"play console";place-content:center;place-items:center stretch;gap:40px;display:grid}.game-console{min-height:var(--board-size);flex-direction:column;grid-area:console;align-self:stretch;padding-top:22px;display:flex}.hud{grid-template-rows:64px 64px;grid-template-columns:repeat(2,minmax(0,1fr));width:100%;min-height:128px}.hud-stat{padding:8px 12px}.hud-stat--high{border-right:0}.hud-stat>span{font-size:12px}.hud-stat strong{font-size:23px}.hud-stat strong small{font-size:12px}.shift-meter{border-top:1px solid var(--line);grid-column:1/-1;padding:8px 11px}.shift-copy b,.shift-copy small{font-size:12px}.era-display{width:100%;min-height:104px;margin-top:18px}.era-art{flex-basis:104px;width:104px;height:104px}.direction-pad{margin:auto auto 18px}.storage-status{margin-top:0}}@media (max-height:650px) and (max-width:959px){.game-layout{gap:2px}.era-display{display:none}}@media (max-height:620px) and (orientation:landscape) and (min-width:600px){:root{--board-size:clamp(240px, calc(100dvh - 86px), 460px)}.app-frame{padding-top:5px}.topbar{height:48px}.brand-mark{flex-basis:36px;width:36px;height:36px}.brand-type h1{font-size:19px}.game-layout{grid-template-columns:var(--board-size) 250px;grid-template-areas:"play console";justify-content:center;place-items:center stretch;gap:24px}.game-console{min-height:var(--board-size);flex-direction:column;grid-area:console;display:flex}.hud{grid-template-rows:54px 52px;grid-template-columns:repeat(2,minmax(0,1fr));width:100%}.shift-meter{border-top:1px solid var(--line);grid-column:1/-1}.direction-pad{margin:auto auto 8px}.storage-status{margin-top:0}.era-display{display:none}}@media (max-width:359px){.app-frame{padding-left:12px;padding-right:12px}.brand-type h1{font-size:19px}.hud-stat{padding-left:6px;padding-right:6px}.hud-stat strong{font-size:16px}.shift-meter{grid-template-columns:26px minmax(0,1fr) 4px;gap:4px;padding-left:5px;padding-right:5px}.shift-icon{width:26px;height:26px}.dialog-actions{flex-direction:column;align-items:stretch}.text-button{width:100%}}@media (prefers-contrast:more){.board-cell,.tile,.direction-pad button{border-width:2px}}html[data-motion=reduced] *,html[data-motion=reduced] :before,html[data-motion=reduced] :after{scroll-behavior:auto!important;transition-duration:1ms!important;animation-duration:1ms!important;animation-iteration-count:1!important}@keyframes tile-arrive{0%{opacity:0;transform:scale(.82)}}@keyframes tile-stamp{0%{transform:scale(.92)}55%{transform:scale(1.06)}to{transform:scale(1)}}@keyframes unlock-stamp{0%{opacity:0;transform:scale(1.28)}35%{opacity:.72}to{opacity:0;transform:scale(.98)}}@keyframes invalid-outline{0%,to{border-color:#191b20}45%{border-color:var(--cinnabar);box-shadow:0 2px #121418,0 0 0 4px #c83f492e}}@keyframes orbit-earned{0%{opacity:.35;transform:rotate(-45deg)scale(.82)}70%{opacity:1;transform:rotate(8deg)scale(1.08)}to{transform:rotate(0)scale(1)}}@keyframes storage-pulse{50%{opacity:.38}}