@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&display=swap');
:root{--bg:#080d16;--panel:#0b121f;--line:#202b3b;--text:#e9edf4;--muted:#77869a;--green:#c2f76a}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 50% 25%,#142135,#080d16 65%);color:var(--text);font-family:'Space Grotesk','Microsoft YaHei',sans-serif}button{font:inherit;cursor:pointer;color:inherit}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible{outline:2px solid var(--green);outline-offset:4px}header,main,footer{max-width:1240px;width:calc(100% - 96px);margin:auto}header{height:93px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}.brand{font-size:21px;font-weight:700;letter-spacing:2px;display:flex;align-items:center;gap:12px}.brand b{color:var(--green);font-size:32px}.brand small{font-size:9px;color:var(--muted);font-weight:400;border-left:1px solid var(--line);padding-left:18px;margin-left:8px;letter-spacing:1px}.header-right{display:flex;align-items:center;gap:25px}.header-right>span{font-size:9px;letter-spacing:1.4px;color:var(--green)}#sound{border:1px solid var(--line);background:#ffffff03;font-size:10px;border-radius:5px;padding:9px 13px;color:#a4b1c2}.intro{display:flex;align-items:flex-end;justify-content:space-between;margin:37px 0 24px}.eyebrow{font-size:9px;letter-spacing:2px;color:var(--green)}h1{font-size:28px;letter-spacing:2px;font-weight:500;margin:11px 0 0}h1 small{font-size:12px;color:var(--muted);letter-spacing:2px;margin-left:12px}.intro>p{font-size:11px;letter-spacing:1px;color:var(--muted);margin:0 0 4px}.game-shell{border:1px solid #2b3b4d;border-radius:10px;background:var(--panel);overflow:hidden;box-shadow:0 25px 90px #0004}.hud{height:81px;display:flex;align-items:center;gap:70px;padding:0 29px;border-bottom:1px solid var(--line)}.stat{display:flex;flex-direction:column;gap:7px}.stat>span{font-size:8px;letter-spacing:1.7px;color:var(--muted)}.stat strong{font-size:23px;letter-spacing:3px;line-height:1;font-weight:500;font-variant-numeric:tabular-nums}.record strong{font-size:19px;color:#a2aec0}.hud-right{display:flex;align-items:center;gap:28px;margin-left:auto}#lives{color:var(--green);font-size:20px;letter-spacing:1px}#pause{border:1px solid #344155;background:#111b2a;width:33px;height:33px;border-radius:5px;font-size:15px}#pause:disabled{opacity:.4;cursor:default}.arena{height:490px;position:relative;background:#060c16;isolation:isolate}canvas{width:100%;height:100%;display:block;touch-action:none;outline:none}.overlay{position:absolute;inset:0;display:grid;place-items:center;background:linear-gradient(90deg,#060c1655,#060c1622,#060c1655);text-align:center;padding:20px}.overlay[hidden]{display:none}.orbit-mark{height:66px;width:66px;border:1px solid #c2f76644;border-radius:50%;margin:0 auto 22px;display:grid;place-items:center;transform:rotate(-25deg);position:relative;color:var(--green);font-size:40px;text-shadow:0 0 30px #c2f76644}.orbit-mark:after{content:'';position:absolute;width:88px;height:29px;border:1px solid #c2f76655;border-radius:50%}.overlay .eyebrow{font-size:8px;letter-spacing:2.5px}h2{font-weight:500;font-size:43px;line-height:1.35;letter-spacing:3px;margin:17px 0}.overlay p{font-size:11px;line-height:1.9;color:#8797ae;letter-spacing:.5px;margin:0 0 23px}#start{border:0;background:var(--green);color:#1d2c12;padding:14px 25px;border-radius:5px;min-width:200px;font-size:12px;font-weight:600;box-shadow:0 0 35px #c2f76612;transition:.2s}#start span{margin-left:46px}#start:hover{background:#d9ffa0;transform:translateY(-2px)}.start-hint{display:block;font-size:8px;color:#65748a;letter-spacing:1px;margin-top:15px}.corner{position:absolute;width:13px;height:13px;border-color:#668192;border-style:solid;pointer-events:none;opacity:.6}.tl{top:17px;left:17px;border-width:1px 0 0 1px}.tr{top:17px;right:17px;border-width:1px 1px 0 0}.bl{bottom:40px;left:17px;border-width:0 0 1px 1px}.br{bottom:40px;right:17px;border-width:0 1px 1px 0}.arena-footer{position:absolute;left:23px;right:23px;bottom:14px;display:flex;justify-content:space-between;font-size:8px;letter-spacing:1.5px;color:#556981;pointer-events:none}.game-bottom{display:flex;justify-content:space-between;padding:16px 25px;border-top:1px solid var(--line);font-size:9px;color:#a0aec0;letter-spacing:1px}.muted{color:var(--muted)}.game-bottom>span:last-child{font-size:9px;color:var(--muted);letter-spacing:.5px}.game-bottom b{margin:0 15px;color:#394b60;font-weight:400}.instructions{display:grid;grid-template-columns:1fr 1fr 1fr;gap:20px;margin-top:26px;padding:23px 6px}.instructions>div{display:flex;gap:16px}.instructions>div+div{padding-left:28px;border-left:1px solid var(--line)}.instructions>div>span{font-size:10px;color:#456075;margin-top:2px}h3{font-size:12px;letter-spacing:1px;font-weight:400;margin:0 0 12px}.instructions p{font-size:10px;color:#8a9ab0;display:flex;align-items:center;gap:5px;margin:0}kbd{font-family:inherit;font-size:9px;display:inline-grid;place-items:center;min-width:19px;height:21px;border:1px solid #2f3b4e;background:#111927;border-radius:3px}footer{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding:24px 0;margin-top:23px;font-size:8px;letter-spacing:1.5px;color:#526176}footer b{color:var(--green);margin-left:13px;font-size:15px;vertical-align:middle}@media(min-width:1500px){.arena{height:560px}}@media(max-width:760px){header,main,footer{width:calc(100% - 32px)}header{height:76px}.brand{font-size:16px;gap:8px}.brand b{font-size:26px}.brand small,.header-right>span{display:none}.intro{margin-top:25px}.intro>p{display:none}h1{font-size:24px}h1 small{font-size:9px;margin-left:3px;letter-spacing:1px}.hud{height:72px;padding:0 17px;gap:24px}.stat>span{font-size:7px;letter-spacing:1px}.stat strong{font-size:20px}.hud-right{gap:14px}.arena{height:min(58vh,540px);min-height:390px}h2{font-size:30px}.orbit-mark{width:50px;height:50px;margin-bottom:15px;font-size:30px}.orbit-mark:after{width:72px;height:24px}.game-bottom{padding:14px 15px;font-size:8px;letter-spacing:0}.game-bottom>span:last-child{font-size:8px}.game-bottom b{margin:0 5px}.instructions{grid-template-columns:1fr;gap:20px;margin-top:5px}.instructions>div+div{border:0;padding-left:0}.instructions>div{gap:14px}.instructions h3{margin-bottom:7px}.instructions>div:first-child{display:none}footer{font-size:6px;letter-spacing:.6px;margin-top:8px}.arena-footer{font-size:7px;left:15px;right:15px}.record{display:none}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}