:root{--paper:#f4f3eb;--ink:#263f36;--muted:#63756b;--green:#254d3d;--line:#d9ddd0;--orange:#d96b3c;--white:#fffef9;--blue:#85b7bc;--radius:16px;--font:-apple-system,"SF Pro Text","PingFang SC","Microsoft YaHei",sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:14px/1.65 var(--font)}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit}button{border:0}button:disabled{cursor:not-allowed;opacity:.45}button:focus-visible,a:focus-visible,input:focus-visible,canvas:focus-visible{outline:3px solid var(--orange);outline-offset:4px}button:not(:disabled){transition:background .15s,transform .15s,color .15s}button:not(:disabled):active{transform:translateY(1px)}[hidden]{display:none!important}.app{max-width:1500px;margin:auto;padding:0 42px}.topbar{height:96px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:20px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);font-size:20px;font-weight:750;letter-spacing:2px}.brand small{display:block;font:9px/1.5 Georgia,serif;letter-spacing:2.25px}.brand-mark{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:var(--green);color:var(--paper);font-family:Georgia,serif;font-size:32px;font-weight:400;line-height:1}.header-note{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:9px;letter-spacing:1px}.live-dot,.save-dot{width:6px;height:6px;background:#698973;display:inline-block;border-radius:50%;flex-shrink:0}.header-actions{display:flex;gap:12px}.quiet{background:none;min-height:44px;padding:8px 12px;font-size:13px}.quiet:hover{background:#e5e9df;border-radius:8px}.quiet span{margin-left:8px;color:var(--muted);font-variant-numeric:tabular-nums}.heading{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:29px 0 27px}.eyebrow{font-size:10px;letter-spacing:2.5px;color:var(--muted);margin:0 0 7px;font-weight:600}h1{margin:0;font-size:34px;letter-spacing:2px;line-height:1.35;font-weight:750}h1 span{display:inline-block;font-size:13px;font-weight:400;color:var(--muted);margin-left:20px;letter-spacing:1px}.expedition-progress{width:160px;font-size:12px;color:var(--muted)}.progress-track{height:4px;background:#dde2d7;margin-top:10px;border-radius:5px;overflow:hidden}.progress-track i{display:block;height:100%;width:0;background:var(--orange);transition:width .4s}
.game-layout{display:grid;grid-template-columns:310px minmax(0,1fr);gap:23px;align-items:start}.mission-panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.chapter-nav{display:grid;grid-template-columns:repeat(3,1fr);border-bottom:1px solid var(--line);background:#eeefe6}.chapter{background:transparent;min-height:72px;display:flex;align-items:center;justify-content:center;gap:7px;flex-direction:column;padding:10px 3px;font-size:11px;position:relative;line-height:1.1}.chapter b{font:19px Georgia,serif}.chapter.active{color:var(--green);background:var(--white)}.chapter.active:after{content:"";position:absolute;bottom:0;height:3px;background:var(--orange);left:21px;right:21px}.chapter.done b{color:#40794e}.mission-body{padding:24px 24px 18px}.mission-kicker{display:flex;justify-content:space-between;font-size:10px;color:var(--muted);letter-spacing:1.25px;margin-bottom:10px}.mission-kicker span:last-child{color:#b16c4c}h2{margin:0 0 12px;font-size:23px;letter-spacing:-.4px;line-height:1.4}.mission-desc{font-size:13px;line-height:1.85;margin:0 0 20px;color:#58665c}.radio-note{display:flex;gap:11px;background:#edf0e6;border-radius:9px;padding:14px 12px}.radio-icon{font-size:26px;line-height:1.2;color:#687b62}.radio-note b{font-size:11px;letter-spacing:1px}.radio-note p{font-size:12px;line-height:1.8;margin:5px 0 0;color:#60715e}.objectives{padding:18px 0 15px;display:grid;gap:12px;list-style:none;counter-reset:steps;margin:0}.objectives li{counter-increment:steps;display:flex;align-items:flex-start;gap:9px;font-size:12px;line-height:1.6;color:#617163}.objectives li:before{content:counter(steps);display:inline-grid;place-items:center;width:19px;height:19px;flex-shrink:0;border:1px solid #cfd8c8;border-radius:50%;font-size:10px}.objectives li.done:before{content:"✓";background:var(--green);color:white;border-color:var(--green)}.hint-btn{min-height:44px;background:transparent;padding:9px 0;display:flex;justify-content:space-between;width:100%;font-size:12px;color:var(--green);border-top:1px solid var(--line)}.hint-btn:hover{color:var(--orange)}.feedback{font-size:12px;line-height:1.8;padding:12px 0;color:#53654f;min-height:20px}.feedback:empty{display:none}.feedback.error{color:#a34826}.mission-footer{padding:13px 17px;border-top:1px solid var(--line);display:flex;gap:6px;align-items:center;font-size:10px;color:var(--muted);flex-wrap:wrap}.mission-footer button{background:none;margin-left:auto;text-decoration:underline;text-underline-offset:3px;font-size:10px;min-height:30px}.save-dot{width:5px;height:5px}.plan-panel{border-top:1px solid var(--line);padding:16px 0 0}.section-label{display:flex;align-items:center;justify-content:space-between;font-size:12px}.section-label span{font-size:11px;color:var(--muted)}.plan-panel p{font-size:11px;color:var(--muted);margin:8px 0}.plan-tools{display:flex;gap:8px;margin:10px 0 14px}.small-btn{background:#edf0e7;border-radius:6px;padding:8px 10px;font-size:11px;min-height:36px}.small-btn:hover{background:#dfe7d8}label{font-size:12px;font-weight:600;display:block}.input-unit{display:flex;align-items:center;border:1px solid #c8d2c2;border-radius:7px;background:white;padding:0 12px;margin:8px 0 12px}.input-unit input{width:100%;height:42px;border:0;outline-offset:0;background:transparent;font-size:16px;color:var(--green);min-width:0}.input-unit span{font-size:12px;color:var(--muted)}.primary{background:var(--green);color:#fffdf1;width:100%;padding:13px 15px;border-radius:8px;display:flex;justify-content:space-between;align-items:center;gap:15px;font-size:13px;min-height:47px}.primary:hover{background:#39664f}.ready-note{font-size:12px;line-height:1.8;background:#edf2e8;padding:12px;border-radius:8px}.map-panel{min-width:0;background:#e8ecde;border:1px solid #ced8c6;border-radius:var(--radius);overflow:hidden}.map-toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 18px;background:#f9faf2;border-bottom:1px solid #dce2d1}.map-tag{display:flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.4px}.map-switches{display:flex;gap:5px}.map-switches button{min-height:34px;padding:6px 10px;background:transparent;font-size:11px;color:#647461;border-radius:6px}.map-switches button.active{background:#e5ebdc;color:var(--green)}.map-stage{position:relative;background:#e4ead5}.map-stage canvas{display:block;width:100%;height:auto;touch-action:pan-y;outline-offset:-4px;cursor:crosshair}.map-mode{position:absolute;bottom:11px;right:17px;font-size:10px;color:#56684b;letter-spacing:.3px;pointer-events:none;background:#eef1e4df;padding:4px 8px;border-radius:5px}.map-bottom{background:#f9faf2;display:flex;align-items:center;gap:26px;padding:17px 22px;border-top:1px solid #d2dcc9}.stat{flex-shrink:0}.stat small{display:block;color:var(--muted);font-size:10px;letter-spacing:.5px}.stat strong{font:25px/1.6 Georgia,serif;white-space:nowrap}.stat strong em{font:11px var(--font);font-style:normal}.supply-stat{border-left:1px solid #dae1d2;padding-left:26px}.supply-track{height:3px;width:108px;border-radius:3px;background:#dce4d3}.supply-track i{display:block;height:100%;background:#72936b;transition:width .2s}.map-legend{display:flex;gap:7px;flex-direction:column;margin-left:auto;font-size:9px;color:#60705b}.map-legend span{display:flex;align-items:center;gap:7px}.map-legend i{height:8px;width:8px;display:block}.legend-path{background:#afc596;border-radius:2px}.legend-water{background:#80afb5;border-radius:2px}.legend-mountain{background:#788f77;clip-path:polygon(50% 0,100% 100%,0 100%)}.control-strip{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 20px;background:#f0f3e8;border-top:1px solid #dce3d1}.control-strip b{font-size:11px;font-weight:600;display:block}.control-strip span{font-size:10px;color:var(--muted);display:block}.dpad{display:flex;gap:6px}.dpad button{width:38px;height:38px;background:#fffef6;border:1px solid #d2dbc8;border-radius:7px;font-size:19px;box-shadow:0 2px 0 #d5ddcd}.dpad button:hover{background:#dce7d2}.page-footer{display:flex;justify-content:space-between;gap:20px;font-size:10px;color:#78826f;padding:21px 0 27px;letter-spacing:.4px}
dialog{border:1px solid #cbd6c1;border-radius:20px;max-width:530px;width:calc(100% - 32px);padding:0;background:var(--white);color:var(--ink);box-shadow:0 30px 100px #1b352849;max-height:90dvh;overflow-y:auto}dialog::backdrop{background:#1b332973;backdrop-filter:blur(4px)}.dialog-inner{padding:34px 34px 28px}.dialog-eyebrow{font-size:10px;letter-spacing:2px;color:#8b7658;margin:0 0 10px}.dialog-inner h2{font-size:29px;margin:0 0 14px}.dialog-inner p{font-size:13px;line-height:1.85;color:#60705f}.dialog-mark{display:grid;place-items:center;border:1px solid #aac29d;outline:5px solid #e8eedf;width:60px;height:60px;border-radius:50%;font:31px Georgia,serif;color:#588150;margin:10px 0 26px}.dialog-steps{display:grid;gap:10px;margin:20px 0}.dialog-steps div{display:flex;gap:12px;font-size:12px;color:#61715a}.dialog-steps b{font-family:Georgia,serif;color:#be7248}.dialog-actions{display:flex;gap:10px;margin-top:22px}.dialog-actions .secondary{min-height:46px;background:#ecf0e4;border-radius:8px;padding:10px 18px;flex-shrink:0;font-size:12px}.result-stats{display:grid;grid-template-columns:repeat(3,1fr);background:#eef2e7;border-radius:10px;margin:20px 0;padding:16px;gap:12px}.result-stats b{display:block;font:24px Georgia,serif}.result-stats span{font-size:10px;color:var(--muted)}.knowledge-card{padding:15px 0;border-top:1px solid var(--line)}.knowledge-card h3{font-size:14px;margin:0 0 7px;display:flex;justify-content:space-between;gap:10px}.knowledge-card h3 span{font-size:10px;color:#687e5e;font-weight:400}.knowledge-card p{font-size:12px;margin:0}.knowledge-card .evidence{font-size:10px;color:#8a755d;margin-top:9px}.book-intro{margin:0 0 18px}.hint-copy{padding:14px 17px;background:#edf1e5;border-radius:9px}.dialog-inner .smallprint{font-size:10px;color:#8a8d7c}.result-tag{display:inline-flex;font-size:11px;background:#e3eddc;border:1px solid #cbdcbf;border-radius:5px;padding:4px 10px;margin-top:5px}
@media(min-width:1500px){.heading{padding-top:34px;padding-bottom:32px}.mission-body{padding-top:28px}}
@media(max-width:1120px){.app{padding:0 24px}.game-layout{grid-template-columns:280px minmax(0,1fr);gap:16px}.mission-body{padding:20px}.header-note{display:none}h1 span{font-size:11px}.map-bottom{gap:18px;padding:14px 16px}.supply-stat{padding-left:18px}.map-legend{display:none}.dpad button{width:36px;height:38px}.control-strip{padding:12px}.map-switches button{padding:6px;font-size:10px}}
@media(max-width:800px){.app{padding:0 18px}.topbar{height:77px}.brand{font-size:17px}.brand small{font-size:8px;letter-spacing:1.5px}.brand-mark{width:37px;height:37px;font-size:28px}.quiet{font-size:11px;padding:6px}.header-actions{gap:4px}.heading{padding:22px 0}.heading h1{font-size:29px}.heading h1 span{display:block;margin:7px 0 0}.expedition-progress{width:112px;font-size:10px}.game-layout{display:flex;flex-direction:column;gap:15px}.mission-panel,.map-panel{width:100%}.mission-panel{display:flex;flex-direction:column}.chapter-nav{order:0}.chapter{min-height:50px;flex-direction:row;gap:7px}.chapter b{font-size:17px}.mission-body{display:flex;flex-direction:column;padding:18px 20px}.mission-kicker{margin-bottom:6px}h2{font-size:22px;margin-bottom:8px}.mission-desc{margin-bottom:10px}.radio-note{padding:10px 12px}.objectives{display:none}.hint-btn{margin-top:9px}.mission-footer{padding:8px 16px}.map-panel{order:-1}.game-layout .mission-panel{order:0}.map-toolbar{padding:8px 12px}.map-bottom{gap:25px;padding:12px 18px}.map-legend{display:flex}.map-mode{font-size:9px;bottom:8px;right:10px}.dpad button{width:44px;height:44px}.control-strip{padding:12px 16px}.control-strip span{max-width:200px}.page-footer{font-size:9px;gap:15px}.plan-tools .small-btn{min-height:44px}.plan-panel{margin-top:14px}#estimateForm{display:grid;grid-template-columns:1fr 1fr;gap:8px 14px;align-items:center}#estimateForm label{grid-column:1/-1}.input-unit{margin:0}.primary{min-height:46px}.map-switches button{min-height:40px}.chapter{min-height:55px}.mission-footer button{min-height:44px}.dialog-inner{padding:27px}.header-actions .quiet{min-height:44px}}
@media(max-width:460px){.app{padding:0 10px}.topbar{gap:6px}.brand{font-size:15px;letter-spacing:1px;gap:8px}.brand small{font-size:7px;letter-spacing:1px}.brand-mark{width:32px;height:32px;font-size:24px}.quiet{font-size:10px;padding:5px}.quiet span{margin-left:3px}.heading h1{font-size:27px}.heading{padding:19px 5px}.eyebrow{font-size:8px;letter-spacing:2px}.expedition-progress{width:98px}.map-tag{font-size:10px;gap:6px}.map-switches button{font-size:9px;padding:4px 6px}.map-toolbar{gap:4px}.map-legend{display:none}.map-bottom{justify-content:flex-start;padding:10px 15px;gap:25px}.stat strong{font-size:23px}.control-strip{flex-direction:column;align-items:center;gap:10px}.control-strip>div:first-child{text-align:center}.control-strip span{max-width:none}.dpad{gap:11px}.dpad button{width:52px;height:46px}.page-footer{flex-direction:column;gap:3px;text-align:center;padding-top:16px}.dialog-inner h2{font-size:25px}#estimateForm{grid-template-columns:1fr}.dialog-actions{flex-wrap:wrap}.dialog-actions .secondary{flex:1}.map-mode{max-width:75%;font-size:8px}.mission-body{padding:18px}}
@media(min-width:801px){.topbar{height:68px}.heading{padding:18px 0}h1{font-size:29px}.map-stage canvas{height:clamp(340px,calc(100dvh - 350px),640px);width:100%}.map-bottom{padding:8px 20px}.stat strong{font-size:22px;line-height:1.35}.control-strip{padding:7px 18px}.map-toolbar{padding:7px 15px}.map-mode{bottom:7px}.mission-body{padding-top:20px}.map-legend{font-size:9px}.map-panel.expanded canvas{height:auto;aspect-ratio:876/676}}
@media(max-width:800px){#zoomBtn{display:none}.map-stage canvas{aspect-ratio:876/676;height:auto}}
.mission-panel.planning .objectives{display:none}.mission-panel.planning .radio-icon,.mission-panel.planning .radio-note b{display:none}.mission-panel.planning .radio-note{padding:10px 12px}.mission-panel.planning .radio-note p{margin:0}.mission-panel.planning .mission-desc{margin-bottom:12px}.mission-panel.planning .plan-panel{margin-top:14px}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
.map-task{padding:8px 17px;font-size:11px;line-height:1.7;background:#f7f5e8;color:#52604b;border-bottom:1px solid #d8ddcc}.checkpoint-panel{display:grid;gap:7px;margin:12px 0;padding:12px;background:#eaf0e3;border-radius:8px;font-size:11px}.checkpoint-panel>b{font-size:10px;letter-spacing:1px}.checkpoint-panel>span{display:flex;justify-content:space-between;gap:12px}.checkpoint-panel small{font-size:10px;color:#758467}.checkpoint-panel .visited{color:#387249}.level-grid{display:grid;grid-template-columns:1fr 1fr;gap:11px;margin:20px 0}.level-card{padding:14px;text-align:left;background:#f0f3e8;border:1px solid #d6dfcc;border-radius:10px;display:flex;flex-direction:column;gap:7px;min-height:112px}.level-card:hover{background:#e3ecd8}.level-card.current{border-color:#cf8453;box-shadow:inset 0 0 0 1px #cf8453}.level-card>span{font:22px Georgia,serif;display:flex;align-items:center;justify-content:space-between}.level-card small{font:10px var(--font);color:#9a704c}.level-card>b{font-size:12px}.level-card em{font-size:10px;font-style:normal;color:#6d7c62}.header-actions{gap:5px}.header-note{font-size:11px}.quiet{padding-inline:9px}
@media(min-width:801px){.map-stage canvas{height:clamp(340px,calc(100dvh - 385px),640px)}}
@media(max-width:800px){.map-task{font-size:12px;padding:10px 13px}.header-note{display:none}}
@media(max-width:460px){.header-actions{gap:0}.quiet{font-size:10px;padding-inline:4px}#soundBtn{font-size:10px}.level-grid{gap:8px}.level-card{padding:11px;min-height:118px}.level-card>b{font-size:12px}.map-task{font-size:11px}.brand small{display:none}.brand{font-size:14px;gap:6px}.brand-mark{width:28px;height:28px}.header-actions .quiet{min-height:44px}}

dialog.level-select{max-width:780px}.level-select .level-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
@media(max-width:600px){.level-select .level-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}