:root{color:#eefcff;font-synthesis:none;--ink:#eefcff;--panel:#102b35;--line:#38606b;--accent:#ffd65a;--era:#67dbc3;--danger:#ff6b61;--ok:#67e195;background:#07141d;font-family:Trebuchet MS,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}body{background-color:#07141d;background-image:linear-gradient(#ffffff06 1px,#0000 1px),linear-gradient(90deg,#ffffff06 1px,#0000 1px);background-position:0 0;background-repeat:repeat;background-size:32px 32px;background-attachment:scroll;background-origin:padding-box;background-clip:border-box;min-width:320px;min-height:100vh;margin:0}button{font:inherit;letter-spacing:0;cursor:pointer}button:disabled{cursor:not-allowed}button:focus-visible{outline-offset:3px;outline:3px solid #fff}h1,h2,p{overflow-wrap:anywhere}.era-primitive{--era:#efb65a;--era-dark:#463423;--surface:#1c302a;--glow:#efb65a47}.era-magic{--era:#82e6f2;--era-dark:#222354;--surface:#171c3d;--glow:#d555ff47}.era-tech{--era:#55f0c4;--era-dark:#082f3c;--surface:#092c39;--glow:#55f0c440}.system-label{color:var(--era,#67dbc3);margin:0 0 8px;font:700 12px/1.2 ui-monospace,SFMono-Regular,Consolas,monospace}.back-button{color:#d9f0f4;background:0 0;border:0;min-height:42px;padding:8px 0;font-weight:800}.map-screen{width:min(1240px,100% - 36px);margin:auto;padding:32px 0 64px}.game-header{border:1px solid var(--line);border-top:5px solid var(--era);background:linear-gradient(110deg,var(--surface),#0c2029);box-shadow:0 18px 45px #0000004d,inset 0 0 50px var(--glow);grid-template-columns:1fr 190px;align-items:end;gap:32px;padding:28px 32px;display:grid}.game-header h1{margin:0;font-size:clamp(34px,5vw,66px);line-height:1}.game-header p:last-child{color:#a8c7cd;margin:12px 0 0}.commander-status{background:#040e1394;border:1px solid #51737c;grid-template-columns:1fr auto;align-items:center;min-height:110px;padding:14px 16px;display:grid}.commander-status span{color:#9bb9bf;font-size:12px}.commander-status strong{color:var(--era);font:800 42px/1 ui-monospace,monospace}.commander-status small{color:#8ca9af;font-size:14px}.commander-status button{color:#eaf9fb;background:#18343d;border:1px solid #52727a;grid-column:1/-1;min-height:35px}.storage-warning{border-left:4px solid var(--danger);background:#3d2225;padding:12px 16px}.era-tabs{grid-template-columns:repeat(3,1fr);gap:10px;margin:26px 0 18px;display:grid}.era-tabs button{text-align:left;color:#b8ced3;background:#0c2028;border:1px solid #37535b;align-items:center;gap:14px;min-height:76px;padding:12px 18px;display:flex}.era-tabs button b{color:#75959d;text-align:center;width:42px;font-size:28px}.era-tabs button span{font-size:18px;font-weight:900;display:grid}.era-tabs button small{color:#78969d;margin-top:3px;font:11px ui-monospace,monospace}.era-tabs button.active{color:#fff;border-color:var(--era);background:var(--surface);box-shadow:inset 0 -4px var(--era),0 0 22px var(--glow)}.era-tabs button.active b{color:var(--era)}.level-grid{grid-template-columns:repeat(8,minmax(0,1fr));gap:9px;display:grid}.level-grid .level-node strong{line-height:1.15}.level-node{text-align:left;color:#c3d7db;background:linear-gradient(145deg,#16313a,#0b1d24);border:1px solid #35515a;flex-direction:column;justify-content:flex-end;align-items:flex-start;min-height:128px;padding:14px 12px;display:flex;position:relative;overflow:hidden}.level-node:hover:not(:disabled){border-color:var(--era);transform:translateY(-3px);box-shadow:0 8px 20px #00000052}.level-node:disabled{opacity:.38}.level-node.cleared{border-color:color-mix(in srgb,var(--era) 70%,#fff 10%);background:linear-gradient(145deg,var(--surface),#10252d)}.level-id{color:#5e7e85;font:700 11px ui-monospace,monospace;position:absolute;top:8px;right:9px}.level-node strong{font-size:16px}.level-node small{color:#759299;margin-top:3px;font-size:10px}.stars{white-space:nowrap;margin-top:7px}.stars i{color:#46636a;font-size:13px;font-style:normal}.stars i.on{color:var(--era);text-shadow:0 0 10px var(--era)}.lock{color:#9bb0b5;border:1px solid #526a70;padding:2px 5px;font-size:9px;position:absolute;top:9px;left:9px}.reset-link{color:#78969d;background:0 0;border:0;border-bottom:1px solid #45626a;margin:30px auto 0;padding:8px;display:block}.ready-screen{background:radial-gradient(circle at 24% 45%,var(--glow),transparent 28%),#07151d;min-height:100vh;padding:28px max(20px,50vw - 540px)}.mission-brief{grid-template-columns:1.15fr .85fr;align-items:center;gap:55px;min-height:620px;display:grid}.brief-visual{aspect-ratio:1;background:radial-gradient(circle,transparent 22%,var(--glow) 23%,transparent 24%,transparent 45%,var(--glow) 46%,transparent 47%);border:1px solid #44626a;place-items:center;display:grid;position:relative}.brief-visual>span{z-index:1;color:var(--era);filter:drop-shadow(0 0 30px var(--era));font-size:150px}.radar-ring{border:2px dashed var(--era);opacity:.65;border-radius:50%;animation:18s linear infinite spin;position:absolute;inset:12%}.brief-copy h1{margin:0;font-size:clamp(42px,6vw,76px);line-height:1}.mission-rule{color:#a8c6cc;font-size:18px}.brief-copy dl,.result-panel dl{border:1px solid #45636b;grid-template-columns:repeat(3,1fr);margin:30px 0;display:grid}.brief-copy dl div,.result-panel dl div{border-right:1px solid #45636b;padding:14px}.brief-copy dl div:last-child{border:0}.brief-copy dt,.result-panel dt{color:#7e9ca3;font-size:11px}.brief-copy dd,.result-panel dd{color:var(--era);margin:5px 0 0;font-size:24px;font-weight:900}.launch-button{color:#08161c;background:var(--era);min-height:54px;box-shadow:0 7px 0 color-mix(in srgb,var(--era) 45%,#000);border:0;padding:12px 30px;font-weight:900}.battle-screen{background:#061118;min-height:100vh;padding:12px max(12px,50vw - 590px) 32px}.battle-hud{border:1px solid #385861;border-bottom:3px solid var(--era);background:#0c222b;grid-template-columns:auto repeat(4,1fr) auto auto;align-items:center;gap:10px;min-height:58px;padding:8px 14px;display:grid}.battle-hud button{color:#b9d0d4;background:#132d36;border:1px solid #46636b;min-height:36px;padding:6px 12px}.battle-hud div{border-left:1px solid #34515a;padding-left:10px;display:grid}.battle-hud span{color:#79979e;font-size:10px}.battle-hud strong{font:800 18px ui-monospace,monospace}.battle-hud .lives{color:#ff6f68;letter-spacing:2px;font-size:14px}.battle-hud em{color:#08161c;background:var(--era);padding:6px 10px;font-size:11px;font-style:normal;font-weight:900}.battle-hud .battle-state.combat{color:#071b13;background:#67e0a3;box-shadow:0 0 16px #67e0a347}.battle-hud .battle-state.clearing{background:#f6c861}.battle-hud.critical{border-color:#ff625d;animation:1.15s ease-in-out infinite alternate critical-hud-pulse;box-shadow:0 0 0 1px #ff625d59,0 0 22px #ff37314d}.battle-hud.critical .lives{color:#ff453f;text-shadow:0 0 10px #ff453fa6}.battle-hud .speed-control{background:#081b22;border:1px solid #46636b;grid-template-columns:repeat(3,52px);gap:3px;padding:3px;display:grid}.battle-hud .speed-control button{color:#9db6bb;background:0 0;border:0;width:52px;min-height:34px;padding:4px;font:800 12px ui-monospace,monospace}.battle-hud .speed-control button[aria-pressed=true]{color:#07161c;background:var(--era);box-shadow:0 0 12px color-mix(in srgb,var(--era) 35%,transparent)}.battle-canvas{aspect-ratio:2;background:#102a32;border-inline:1px solid #385861;width:100%;min-height:220px;overflow:hidden}.battle-canvas canvas{width:100%!important;height:100%!important;display:block!important}.question-console{border:1px solid #3e5d65;border-top:4px solid var(--era);background:linear-gradient(180deg,var(--surface),#0b1d24);min-height:250px;padding:18px 22px;box-shadow:0 22px 45px #00000061}.question-title{grid-template-columns:auto 1fr auto;align-items:center;gap:16px;display:grid}.question-title>span{color:#08161c;background:var(--era);padding:5px 8px;font:800 11px ui-monospace,monospace}.question-title h2{margin:0;font-size:clamp(20px,2.4vw,30px)}.speak-button{color:#dff7fa;background:#15333c;border:1px solid #53737b;min-height:38px;padding:6px 12px}.battle-options{grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px;display:grid}.battle-options button{text-align:left;color:#e7f5f7;background:#122c35;border:1px solid #48666e;grid-template-columns:40px 1fr;align-items:center;gap:10px;min-height:70px;padding:8px 14px 8px 8px;font-size:17px;font-weight:800;display:grid}.battle-options button span{width:38px;height:38px;color:var(--era);border:1px solid #607d84;place-items:center;font:800 14px ui-monospace,monospace;display:grid}.battle-options button:hover:not(:disabled){border-color:var(--era);transform:translateY(-2px)}.battle-options button.correct{border-color:var(--ok);background:#123c31}.battle-options button.wrong{border-color:var(--danger);background:#422328}.answer-feedback{border-left:5px solid var(--ok);background:#102f28;grid-template-columns:1fr auto auto;align-items:center;gap:12px;margin-top:14px;padding:12px 14px;display:grid}.answer-feedback.bad{border-color:var(--danger);background:#392025}.answer-feedback strong{font-size:18px}.answer-feedback p{color:#dfb9b9;margin:4px 0 0}.continue-button{color:#08161c;background:var(--era);border:0;min-height:42px;padding:8px 18px;font-weight:900}.result-screen-new{background:radial-gradient(circle,var(--glow),transparent 35%),#07151d;place-items:center;min-height:100vh;padding:24px;display:grid}.result-panel{text-align:center;border:1px solid #48666e;border-top:5px solid var(--era);background:#0d222b;width:min(680px,100%);padding:38px;box-shadow:0 25px 70px #0000006b}.result-emblem{border:3px solid var(--ok);width:82px;height:82px;color:var(--ok);border-radius:50%;place-items:center;margin:10px auto 18px;font-size:45px;display:grid}.result-emblem.lost{color:var(--danger);border-color:var(--danger)}.result-panel h1{margin:0;font-size:48px}.result-stars span{color:#405f66;font-size:40px}.result-stars span.on{color:var(--era);text-shadow:0 0 18px var(--era)}.result-panel dl{grid-template-columns:repeat(4,1fr)}.result-panel dl div:last-child{border:0}.result-buttons{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.result-buttons button{color:#dff2f5;background:#16313a;border:1px solid #506e75;min-height:48px}.result-buttons .launch-button{color:#08161c;background:var(--era);box-shadow:none;border:0}.archive-screen{width:min(900px,100% - 32px);min-height:100vh;margin:auto;padding:30px 0 60px}.archive-screen h1{margin:0;font-size:52px}.archive-screen header>p:last-child{color:#91adb3}.wrong-list{grid-template-columns:repeat(2,1fr);gap:8px;margin-top:25px;display:grid}.wrong-list div{background:#0e252d;border:1px solid #35525a;grid-template-columns:42px 1fr auto;align-items:center;gap:10px;min-height:64px;padding:10px;display:grid}.wrong-list button{width:38px;height:38px;color:var(--era);background:#17323a;border:1px solid #48676e}.wrong-list span{color:#78969d;font-size:12px}.empty-archive{color:#8ca9af;text-align:center;border:1px dashed #48656d;margin-top:30px;padding:30px}@keyframes spin{to{transform:rotate(360deg)}}@keyframes critical-hud-pulse{0%{background:#0c222b}to{background:#321a20}}@media (width<=900px){.level-grid{grid-template-columns:repeat(6,1fr)}.mission-brief{grid-template-columns:.8fr 1.2fr;gap:28px}.brief-visual>span{font-size:110px}.battle-hud{grid-template-columns:auto repeat(2,1fr) auto auto}.battle-hud div:nth-of-type(3),.battle-hud div:nth-of-type(4){display:none}}@media (width<=640px){.map-screen{width:calc(100% - 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