:root{--arcade-bg: #0a0a1a;--arcade-surface: #1a1a2e;--arcade-neon-green: #00ff88;--arcade-neon-pink: #ff0088;--arcade-neon-cyan: #00ffff;--arcade-neon-yellow: #ffff00;--arcade-neon-orange: #ff8800}body:has(.command-container){overflow:hidden;position:fixed;width:100%;height:100%}.page-content:has(.command-container){max-width:none;padding:0;margin:0}.command-container{height:100vh;max-height:100vh;background:var(--arcade-bg);color:#fff;font-family:Courier New,monospace;position:relative;overflow:hidden}.command-container:before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent,transparent 2px,rgba(0,0,0,.15) 2px,rgba(0,0,0,.15) 4px);pointer-events:none;z-index:100}.command-container:after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 150px #000000b3;pointer-events:none;z-index:99}.command-menu{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;padding:var(--spacing-xl);text-align:center}.command-title{font-size:clamp(2rem,8vw,4rem);font-weight:700;letter-spacing:.15em;margin-bottom:var(--spacing-sm);color:var(--arcade-neon-green);text-shadow:0 0 10px var(--arcade-neon-green),0 0 20px var(--arcade-neon-green),0 0 40px var(--arcade-neon-green);animation:title-glow 2s ease-in-out infinite alternate}@keyframes title-glow{0%{text-shadow:0 0 10px var(--arcade-neon-green),0 0 20px var(--arcade-neon-green)}to{text-shadow:0 0 20px var(--arcade-neon-green),0 0 40px var(--arcade-neon-green),0 0 60px var(--arcade-neon-green)}}.title-swap{display:inline-block;position:relative;width:4.5em;text-align:right}.title-swap .title-text{transition:opacity .4s ease}.title-swap .title-text.hanzi{position:absolute;right:0;top:50%;transform:translateY(-50%) translate(-10%) scaleX(1.15);font-family:PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:1.2em;letter-spacing:.15em}.title-swap .title-text.hidden{opacity:0}.command-subtitle{font-size:var(--font-size-lg);color:var(--arcade-neon-cyan);margin-bottom:var(--spacing-2xl);opacity:.8}.command-setting-group{margin-bottom:var(--spacing-xl);width:100%;max-width:600px}.command-setting-group h3{font-size:var(--font-size-sm);text-transform:uppercase;letter-spacing:.1em;color:var(--arcade-neon-yellow);margin-bottom:var(--spacing-md)}.command-difficulty-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:var(--spacing-sm)}.command-difficulty-btn{background:var(--arcade-surface);border:2px solid rgba(0,255,136,.3);border-radius:var(--radius-md);padding:var(--spacing-md);cursor:pointer;transition:all .2s ease;text-align:left}.command-difficulty-btn:hover{border-color:var(--arcade-neon-green);box-shadow:0 0 15px #00ff884d}.command-difficulty-btn.active{border-color:var(--arcade-neon-green);background:#00ff881a;box-shadow:0 0 20px #0f86}.difficulty-name{display:block;font-size:var(--font-size-base);font-weight:700;color:#fff;margin-bottom:var(--spacing-xs)}.difficulty-desc{display:block;font-size:var(--font-size-xs);color:#fff9}.command-high-score{font-size:var(--font-size-lg);color:var(--arcade-neon-yellow);margin-bottom:var(--spacing-lg);text-shadow:0 0 10px var(--arcade-neon-yellow)}.command-high-score span{font-weight:700;font-size:var(--font-size-2xl)}.command-instructions{margin-bottom:var(--spacing-xl);color:#ffffffb3}.command-instructions kbd{background:var(--arcade-surface);border:1px solid var(--arcade-neon-cyan);border-radius:4px;padding:2px 8px;font-family:inherit;color:var(--arcade-neon-cyan)}.command-start-btn{font-size:var(--font-size-xl);font-weight:700;letter-spacing:.1em;padding:var(--spacing-md) var(--spacing-2xl);background:transparent;border:3px solid var(--arcade-neon-green);color:var(--arcade-neon-green);cursor:pointer;transition:all .2s ease;text-shadow:0 0 10px var(--arcade-neon-green)}.command-start-btn:hover{background:var(--arcade-neon-green);color:var(--arcade-bg);box-shadow:0 0 30px var(--arcade-neon-green);text-shadow:none}.command-game{height:100vh;display:flex;flex-direction:column}.command-hud{display:flex;justify-content:space-between;align-items:flex-start;padding:var(--spacing-md) var(--spacing-lg);background:linear-gradient(180deg,rgba(0,0,0,.8) 0%,transparent 100%);z-index:10}.command-hud-left,.command-hud-right{flex:1}.command-hud-center{flex:1;text-align:center}.command-score{font-size:var(--font-size-xl);font-weight:700;color:var(--arcade-neon-yellow);text-shadow:0 0 10px var(--arcade-neon-yellow)}.command-level{font-size:var(--font-size-sm);color:var(--arcade-neon-cyan);margin-top:var(--spacing-xs)}.command-combo{font-size:var(--font-size-lg);font-weight:700;color:var(--arcade-neon-orange);text-shadow:0 0 15px var(--arcade-neon-orange);animation:combo-pulse .3s ease}@keyframes combo-pulse{0%{transform:scale(1)}50%{transform:scale(1.2)}to{transform:scale(1)}}.command-combo.bomb-ready{color:var(--arcade-neon-pink);text-shadow:0 0 15px var(--arcade-neon-pink),0 0 30px var(--arcade-neon-pink);animation:bomb-ready-pulse .5s ease infinite}.bomb-indicator{color:var(--arcade-neon-cyan);text-shadow:0 0 10px var(--arcade-neon-cyan);font-size:var(--font-size-sm);animation:bomb-indicator-flash .3s ease infinite}@keyframes bomb-ready-pulse{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}@keyframes bomb-indicator-flash{0%,to{opacity:1}50%{opacity:.5}}.command-arena.bomb-active:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 90%,rgba(255,255,255,.9) 0%,rgba(0,255,255,.5) 30%,rgba(255,0,136,.3) 60%,transparent 80%);animation:bomb-flash .5s ease-out forwards;pointer-events:none;z-index:20}@keyframes bomb-flash{0%{opacity:1;transform:scale(.5)}30%{opacity:.8;transform:scale(1.5)}to{opacity:0;transform:scale(2)}}.command-health-container{text-align:right}.command-health-label{font-size:var(--font-size-xs);color:#ffffffb3;margin-bottom:var(--spacing-xs);letter-spacing:.1em}.command-health-bar{width:150px;height:16px;background:var(--arcade-surface);border:2px solid var(--arcade-neon-green);border-radius:8px;overflow:hidden;margin-left:auto}.command-health-fill{height:100%;background:linear-gradient(90deg,var(--arcade-neon-pink),var(--arcade-neon-orange));transition:width .3s ease;box-shadow:0 0 10px var(--arcade-neon-pink)}.command-health-fill.critical{animation:health-critical .5s ease infinite}@keyframes health-critical{0%,to{opacity:1}50%{opacity:.5}}.command-arena{flex:1;position:relative;overflow:hidden;background:radial-gradient(ellipse 80% 30% at 50% 95%,rgba(255,100,50,.15) 0%,rgba(255,50,100,.08) 40%,transparent 70%),linear-gradient(to top,rgba(255,50,100,.12) 0%,rgba(180,50,150,.08) 15%,rgba(100,50,150,.05) 30%,rgba(50,30,80,.03) 50%,transparent 70%),var(--arcade-bg)}.command-arena .sunset-lines{position:absolute;bottom:0;left:0;right:0;height:30%;pointer-events:none;z-index:0;background:repeating-linear-gradient(to bottom,transparent 0px,transparent 4px,rgba(0,0,0,.7) 4px,rgba(0,0,0,.7) 12px);-webkit-mask-image:linear-gradient(to top,black 0%,black 60%,transparent 100%);mask-image:linear-gradient(to top,black 0%,black 60%,transparent 100%);animation:sunset-lines-blur 8s ease-in-out infinite}@keyframes sunset-lines-blur{0%,to{filter:blur(0px)}50%{filter:blur(5px)}}.command-syllable{position:absolute;transform:translate(-50%,-50%);text-align:center;transition:transform .1s ease;z-index:5}.command-syllable .syllable-text{display:block;font-size:clamp(1.5rem,4vw,2.5rem);font-weight:700;color:var(--tone-color, #fff);text-shadow:0 0 10px var(--tone-color, #fff),0 0 20px var(--tone-color, #fff)}.command-syllable .syllable-tone{display:block;font-size:var(--font-size-sm);color:#ffffff80;margin-top:2px}.command-syllable.targeted{transform:translate(-50%,-50%) scale(1.1)}.command-syllable.targeted .syllable-text{color:#fff;text-shadow:0 0 15px var(--tone-color, #fff),0 0 30px var(--tone-color, #fff),0 0 45px var(--tone-color, #fff)}.command-syllable.matched{animation:matched-pulse .4s ease infinite}.command-syllable.matched .syllable-text{color:#fff;text-shadow:0 0 20px var(--tone-color, #fff),0 0 40px var(--tone-color, #fff),0 0 60px var(--tone-color, #fff)}@keyframes matched-pulse{0%,to{transform:translate(-50%,-50%) scale(1.1)}50%{transform:translate(-50%,-50%) scale(1.2)}}.command-syllable.playing{animation:playing-glow .6s ease-out}.command-syllable.playing .syllable-text{text-shadow:0 0 20px var(--tone-color, #fff),0 0 40px var(--tone-color, #fff),0 0 60px var(--tone-color, #fff),0 0 80px rgba(255,255,255,.5)}.command-syllable.playing .syllable-tone{color:#ffffffe6}@keyframes playing-glow{0%{transform:translate(-50%,-50%) scale(1.15);opacity:1}50%{opacity:.85}to{transform:translate(-50%,-50%) scale(1);opacity:1}}.command-syllable.hanzi-mode .syllable-text{font-size:clamp(2rem,5vw,3rem);font-family:PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}.command-explosion{position:absolute;transform:translate(-50%,-50%);z-index:10;pointer-events:none}.explosion-ring{width:100px;height:100px;border:4px solid var(--tone-color, var(--arcade-neon-green));border-radius:50%;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(0);box-shadow:0 0 20px var(--tone-color, var(--arcade-neon-green)),inset 0 0 20px #fff3}.command-explosion.expanding .explosion-ring{animation:explosion-expand .15s ease-out forwards}.command-explosion.showing .explosion-ring,.command-explosion.fading .explosion-ring{transform:translate(-50%,-50%) scale(1.5)}.command-explosion.fading .explosion-ring{opacity:calc(1 - var(--progress, 0))}@keyframes explosion-expand{0%{transform:translate(-50%,-50%) scale(0)}to{transform:translate(-50%,-50%) scale(1.5)}}.explosion-reveal{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:3rem;font-weight:700;color:#fff;text-shadow:0 0 20px var(--tone-color, #fff),0 0 40px var(--tone-color, #fff);animation:reveal-pop .35s ease-out;white-space:nowrap}.explosion-reveal.is-hanzi{font-family:PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}.explosion-reveal.is-pinyin{font-size:2rem;letter-spacing:.05em;animation:pinyin-reveal .35s ease-out}@keyframes reveal-pop{0%{opacity:0;transform:translate(-50%,-50%) scale(.5)}30%{opacity:1;transform:translate(-50%,-50%) scale(1.1)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}@keyframes pinyin-reveal{0%{opacity:0;transform:translate(-50%,-30%) scale(.5)}40%{opacity:1;transform:translate(-50%,-60%) scale(1.15)}70%{transform:translate(-50%,-45%) scale(1)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}.command-laser{position:absolute;left:var(--target-x);top:var(--target-y);width:4px;height:calc(92% - var(--target-y));transform:translate(-50%);background:linear-gradient(0deg,rgba(255,255,255,1) 0%,var(--tone-color, rgba(0, 255, 255, 1)) 5%,color-mix(in srgb,var(--tone-color, cyan) 80%,transparent) 20%,color-mix(in srgb,var(--tone-color, cyan) 40%,transparent) 60%,transparent 100%);box-shadow:0 0 10px var(--tone-color, cyan),0 0 20px color-mix(in srgb,var(--tone-color, cyan) 60%,transparent),0 0 40px color-mix(in srgb,var(--tone-color, cyan) 40%,transparent);animation:laser-fire .3s ease-out forwards;pointer-events:none;z-index:15}@keyframes laser-fire{0%{opacity:1;transform:translate(-50%) scaleX(3);clip-path:inset(100% 0 0 0)}15%{clip-path:inset(0 0 0 0);transform:translate(-50%) scaleX(1.5)}30%{transform:translate(-50%) scaleX(1)}to{opacity:0;transform:translate(-50%) scaleX(.5);clip-path:inset(0 0 0 0)}}.command-level-up{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:clamp(3rem,10vw,6rem);font-weight:700;color:var(--arcade-neon-yellow);text-shadow:0 0 20px var(--arcade-neon-yellow),0 0 40px var(--arcade-neon-yellow),0 0 60px var(--arcade-neon-yellow);animation:level-up 1.5s ease-out forwards;z-index:20}@keyframes level-up{0%{opacity:0;transform:translate(-50%,-50%) scale(.5)}20%{opacity:1;transform:translate(-50%,-50%) scale(1.2)}80%{opacity:1;transform:translate(-50%,-50%) scale(1)}to{opacity:0;transform:translate(-50%,-50%) scale(1)}}.command-base{position:absolute;bottom:0;left:50%;transform:translate(-50%);width:200px;height:100px}.command-dome{position:absolute;bottom:20px;left:50%;transform:translate(-50%);width:180px;height:90px;pointer-events:none}.dome-shield{width:100%;height:100%;border-radius:90px 90px 0 0;background:radial-gradient(ellipse at 50% 100%,rgba(0,255,255,.1) 0%,rgba(0,255,255,.05) 50%,transparent 70%);border:2px solid rgba(0,255,255,.6);border-bottom:none;box-shadow:0 0 20px #00ffff4d,0 0 40px #0ff3,inset 0 0 30px #00ffff1a;transition:opacity .3s ease}.command-base.hit .dome-shield{animation:dome-hit .4s ease-out}@keyframes dome-hit{0%{opacity:1;box-shadow:0 0 40px #ff0064cc,0 0 80px #ff006480;border-color:#ff0064e6}25%{opacity:.3}50%{opacity:.9}75%{opacity:.5}to{opacity:inherit;box-shadow:0 0 20px #00ffff4d,0 0 40px #0ff3;border-color:#0ff9}}.command-city{position:absolute;bottom:0;left:50%;transform:translate(-50%);display:flex;align-items:flex-end;justify-content:center;gap:4px;height:50px}.building{background:linear-gradient(180deg,#2a4a6a,#1a2a3a);border-radius:2px 2px 0 0;position:relative}.building:before{content:"";position:absolute;inset:4px 2px;background:repeating-linear-gradient(0deg,rgba(255,255,150,.6) 0px,rgba(255,255,150,.6) 3px,transparent 3px,transparent 6px)}.building.b1{width:16px;height:35px}.building.b2{width:20px;height:45px}.building.b3{width:24px;height:50px}.building.b4{width:18px;height:40px}.building.b5{width:14px;height:30px}.building.destroyed{background:linear-gradient(180deg,#3a3a3a,#1a1a1a);clip-path:polygon(0 30%,20% 0,50% 20%,80% 0,100% 25%,100% 100%,0 100%)}.building.destroyed:before{background:none}.building.destroyed.b1{height:20px}.building.destroyed.b2{height:25px}.building.destroyed.b3{height:30px}.smoke{position:absolute;bottom:20px;width:30px;height:60px;background:radial-gradient(ellipse at 50% 100%,rgba(100,100,100,.6) 0%,rgba(80,80,80,.3) 40%,transparent 70%);border-radius:50%;animation:smoke-rise 3s ease-out infinite}.smoke.s1{left:30%;animation-delay:0s}.smoke.s2{left:50%;animation-delay:1s}.smoke.s3{left:70%;animation-delay:.5s}@keyframes smoke-rise{0%{transform:translateY(0) scale(1);opacity:.6}to{transform:translateY(-80px) scale(2);opacity:0}}.palm-tree{position:absolute;bottom:15px;z-index:2}.palm-trunk{width:3px;height:22px;background:linear-gradient(180deg,#ff6b9d,#c44569,#8b2a4a);margin:0 auto;border-radius:2px;box-shadow:0 0 8px #ff6b9d80}.palm-fronds{position:absolute;top:-10px;left:50%;transform:translate(-50%);width:24px;height:15px;background:radial-gradient(ellipse 100% 50% at 50% 100%,transparent 40%,#00ffaa 41%,#00ffaa 45%,transparent 46%),radial-gradient(ellipse 80% 40% at 30% 80%,transparent 40%,#00ff88 41%,#00ff88 45%,transparent 46%),radial-gradient(ellipse 80% 40% at 70% 80%,transparent 40%,#00ff88 41%,#00ff88 45%,transparent 46%),radial-gradient(ellipse 60% 35% at 20% 70%,transparent 40%,#00ffcc 41%,#00ffcc 45%,transparent 46%),radial-gradient(ellipse 60% 35% at 80% 70%,transparent 40%,#00ffcc 41%,#00ffcc 45%,transparent 46%);filter:drop-shadow(0 0 6px rgba(0,255,136,.6));animation:palm-sway 4s ease-in-out infinite}.palm-tree.p1{left:-100px;transform:scale(.7)}.palm-tree.p2{left:-55px;transform:scale(.9)}.palm-tree.p3{right:-55px;left:auto;transform:scale(.85) scaleX(-1)}.palm-tree.p4{right:-100px;left:auto;transform:scale(.65) scaleX(-1)}@keyframes palm-sway{0%,to{transform:translate(-50%) rotate(-2deg)}50%{transform:translate(-50%) rotate(2deg)}}.palm-tree.p1 .palm-fronds{animation-delay:0s}.palm-tree.p2 .palm-fronds{animation-delay:.5s}.palm-tree.p3 .palm-fronds{animation-delay:1s}.palm-tree.p4 .palm-fronds{animation-delay:1.5s}.palm-tree.wilted .palm-trunk{background:linear-gradient(180deg,#4a4a4a,#2a2a2a);box-shadow:none;transform:rotate(5deg)}.palm-tree.wilted .palm-fronds{background:radial-gradient(ellipse 100% 50% at 50% 100%,transparent 40%,#3a3a3a 41%,#3a3a3a 45%,transparent 46%),radial-gradient(ellipse 80% 40% at 30% 80%,transparent 40%,#4a4a4a 41%,#4a4a4a 45%,transparent 46%),radial-gradient(ellipse 80% 40% at 70% 80%,transparent 40%,#4a4a4a 41%,#4a4a4a 45%,transparent 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100%);display:flex;justify-content:center;align-items:center;gap:var(--spacing-md);z-index:10;position:relative}.command-input-display{display:inline-block;min-width:100px;padding:var(--spacing-xs) var(--spacing-md);background:var(--arcade-surface);border:2px solid var(--arcade-neon-cyan);border-radius:var(--radius-md);font-size:var(--font-size-xl);font-weight:700;color:var(--arcade-neon-cyan);text-shadow:0 0 10px var(--arcade-neon-cyan)}.input-text{min-width:1ch}.input-cursor{animation:cursor-blink 1s ease infinite;color:var(--arcade-neon-green)}@keyframes cursor-blink{0%,to{opacity:1}50%{opacity:0}}.command-tone-prompt{position:absolute;left:calc(50% + 80px);color:var(--arcade-neon-green);opacity:0;transition:opacity .15s ease;white-space:nowrap}.command-tone-prompt.visible{opacity:1;animation:prompt-pulse .5s ease infinite}.command-tone-prompt kbd{background:var(--arcade-surface);border:1px solid var(--arcade-neon-green);border-radius:4px;padding:2px 8px;margin:0 2px;color:var(--arcade-neon-green)}@keyframes prompt-pulse{0%,to{opacity:1}50%{opacity:.7}}.command-overlay{position:absolute;inset:0;background:#000000d9;display:flex;align-items:center;justify-content:center;z-index:50}.command-pause-menu{text-align:center}.command-pause-menu h2{font-size:var(--font-size-4xl);color:var(--arcade-neon-yellow);margin-bottom:var(--spacing-xl);text-shadow:0 0 20px var(--arcade-neon-yellow)}.command-btn{display:block;width:200px;margin:var(--spacing-md) auto;padding:var(--spacing-md) var(--spacing-lg);font-size:var(--font-size-lg);font-weight:700;font-family:inherit;background:transparent;border:2px solid var(--arcade-neon-green);color:var(--arcade-neon-green);cursor:pointer;transition:all .2s ease}.command-btn:hover{background:var(--arcade-neon-green);color:var(--arcade-bg);box-shadow:0 0 20px var(--arcade-neon-green)}.command-btn.secondary{border-color:#ffffff80;color:#ffffffb3}.command-btn.secondary:hover{border-color:#fff;background:transparent;color:#fff;box-shadow:none}.command-gameover{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-xl);text-align:center;position:relative}.command-gameover-card{background:#0a0a1ad9;border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-lg);padding:var(--spacing-2xl);position:relative;z-index:10;box-shadow:0 0 40px #00000080}.command-gameover-title{font-size:clamp(2rem,8vw,4rem);color:var(--arcade-neon-pink);text-shadow:0 0 20px var(--arcade-neon-pink),0 0 40px var(--arcade-neon-pink);margin-bottom:var(--spacing-xl);animation:gameover-flash 1s ease infinite}@keyframes gameover-flash{0%,to{opacity:1}50%{opacity:.7}}.command-final-score{margin-bottom:var(--spacing-xl)}.score-label{font-size:var(--font-size-sm);color:#fff9;letter-spacing:.1em;margin-bottom:var(--spacing-sm)}.score-value{font-size:clamp(3rem,10vw,5rem);font-weight:700;color:var(--arcade-neon-yellow);text-shadow:0 0 20px var(--arcade-neon-yellow)}.new-record{font-size:var(--font-size-lg);color:var(--arcade-neon-green);text-shadow:0 0 10px var(--arcade-neon-green);margin-top:var(--spacing-sm);animation:record-pulse .5s ease infinite}@keyframes record-pulse{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}.command-stats{color:#fff9;margin-bottom:var(--spacing-xl)}.command-stats div{margin:var(--spacing-xs) 0}.command-gameover-buttons{display:flex;gap:var(--spacing-md)}.command-gameover .gameover-city{position:fixed;bottom:10%;left:50%;transform:translate(-50%) scale(1.5);z-index:1}.command-gameover .gameover-city .smoke{animation-duration:2s;opacity:.9}.command-gameover .gameover-city .building.destroyed{filter:brightness(.3);box-shadow:0 0 30px #ff640099,0 0 60px #ff320066,inset 0 0 20px #ff64004d}.command-gameover .gameover-city:after{content:"";position:absolute;bottom:0;left:-100%;right:-100%;height:150px;background:linear-gradient(to top,rgba(255,50,0,.3),transparent);animation:fire-glow 1.5s ease-in-out infinite alternate}@keyframes fire-glow{0%{opacity:.5}to{opacity:.8}}