:root{color-scheme:dark;font-family:"Courier New","Microsoft YaHei",monospace;background:#111;color:#d0d0d0}*{box-sizing:border-box}body{margin:0}.game-page{width:min(850px,100%);margin:0 auto;padding:22px 24px 28px}header{display:flex;align-items:center;gap:15px;margin:0 0 14px;height:35px}h1{font-family:"Microsoft YaHei",sans-serif;font-weight:600;font-size:18px;letter-spacing:2px;margin:0;color:#eee}header>span{font-size:10px;letter-spacing:1px;color:#767676}header>div{display:flex;gap:8px;margin-left:auto}button{font:inherit;cursor:pointer;color:inherit;touch-action:manipulation}header button{background:#202020;border:1px solid #444;padding:6px 10px;font-size:11px}button:disabled{opacity:.35;cursor:default}button:hover:enabled{color:#fff;border-color:#aaa}button:focus-visible,a:focus-visible,summary:focus-visible,#game:focus-visible{outline:2px solid #f8bc3c;outline-offset:3px}.screen{position:relative;width:100%;aspect-ratio:4/3;background:#000;box-shadow:0 0 0 1px #333,0 8px 30px #0005;overflow:hidden}.menu{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;padding-top:26%;pointer-events:none}.menu[hidden]{display:none}.menu>button{pointer-events:auto;background:transparent;border:0;color:#fff;font-weight:bold;font-size:clamp(13px,2.7vw,23px);letter-spacing:3px;padding:8px 12px;text-shadow:2px 2px #493c68}.menu>button:hover{color:#f8bc3c}.menu p{font-family:"Microsoft YaHei",sans-serif;font-size:clamp(9px,1.5vw,13px);color:#bbb;margin:0 0 16px;letter-spacing:3px}.menu p.menu-hint{font-family:monospace;font-size:clamp(8px,1.2vw,11px);margin:20px 0 0;color:#888;letter-spacing:2px}.menu.result{padding-top:14%}.menu.result p{line-height:1.8;text-align:center;padding:0 12px}.readout{display:flex;justify-content:space-between;font-size:11px;line-height:1.5;padding:12px 0;color:#909090;border-bottom:1px solid #333}.readout #state-label{color:#f8bc3c}.instructions{font-size:11px;line-height:2.2;color:#999;padding:11px 0}.instructions p{margin:3px 0}kbd{font:inherit;color:#ddd}.touch-controls{display:none;padding:16px 4px;justify-content:space-between;align-items:center;gap:14px;touch-action:none;user-select:none;-webkit-user-select:none}.dpad{display:grid;grid-template-columns:42px 42px 42px;grid-template-rows:37px 37px;gap:4px}.dpad button{background:#292929;border:1px solid #666;color:#eee;font-size:18px}.dpad button[data-control=up]{grid-column:2}.dpad button[data-control=left]{grid-column:1;grid-row:2}.dpad button[data-control=down]{grid-column:2;grid-row:2}.dpad button[data-control=right]{grid-column:3;grid-row:2}.touch-actions{display:flex;gap:11px;align-items:center}.touch-actions button{height:51px;width:51px;border-radius:50%;border:2px solid #9c1818;background:#c82828;color:#fff;font-size:17px;line-height:1.1}.touch-actions button[data-control=turbo]{font-size:11px;width:42px;height:42px;background:#303030;border-color:#777}.touch-actions small{font-size:9px}.touch-controls button{touch-action:none}.touch-controls button.active{background:#f8bc3c;color:#111;border-color:#fff}details{font-size:11px;border-top:1px solid #333;padding:13px 0;line-height:1.9;color:#888}summary{cursor:pointer;width:max-content;color:#aaa}.details-content p{margin:12px 0 0}footer{display:flex;justify-content:space-between;gap:12px;font-size:9px;color:#626262;padding-top:7px}footer a{color:#8e8e8e;text-decoration:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:650px){.game-page{padding:15px 12px 24px}header{gap:8px;margin-bottom:10px}h1{font-size:15px}header>span{font-size:8px;letter-spacing:0}header button{font-size:10px;padding:5px 7px}header>div{gap:5px}.touch-controls{display:flex}.instructions{font-size:10px}.readout{font-size:10px;padding:10px 0}.menu>button{letter-spacing:2px}.menu p{margin-bottom:9px}.menu p.menu-hint{margin-top:12px}footer{font-size:8px}.touch-actions{gap:7px}.touch-actions button{height:45px;width:45px}.dpad{grid-template-columns:36px 36px 36px;grid-template-rows:34px 34px}}@media(pointer:coarse){.touch-controls{display:flex}}@media(min-width:1100px) and (max-height:850px){.game-page{width:740px;padding-top:12px}.instructions{padding:6px 0}header{margin-bottom:10px}}

.stage-settings{display:flex;gap:14px;align-items:center;margin:0 0 12px;font-size:11px;color:#b8b8b8}.stage-settings label{display:flex;gap:8px;align-items:center}.stage-settings select{font:inherit;background:#181818;border:1px solid #505050;color:#eee;padding:7px 8px;max-width:100%}.stage-settings select:focus-visible{outline:2px solid #f8b800}.stage-settings>span{margin-left:auto;font-size:10px}.arsenal{font-size:11px;color:#f8b800;padding-top:8px;min-height:24px}.touch-extra{display:none;gap:8px;justify-content:flex-end}.touch-extra button{background:#292929;border:1px solid #666;padding:10px 13px;touch-action:none;font-size:12px}.touch-extra button.active{background:#f8b800;color:#000}.expansion-help{border-top:1px solid #242424}.menu>button[hidden]{display:none}.menu>button#next-button{font-size:clamp(10px,2vw,16px);color:#f8b800;letter-spacing:1px}@media(max-width:650px){.stage-settings{gap:8px;flex-wrap:wrap;font-size:10px}.stage-settings label{gap:5px}.stage-settings select{padding:7px 4px}.stage-settings>span{display:none}.touch-extra{display:flex}.arsenal{font-size:10px}.touch-extra button{flex:1}.menu p.menu-hint{letter-spacing:0}}@media(pointer:coarse){.touch-extra{display:flex}}