:root{font-family:'Microsoft YaHei','PingFang SC',sans-serif;color:#203452;background:#f2f5fa;font-synthesis:none;--ink:#203452;--orange:#f6bc65;--muted:#718096}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #d88225;outline-offset:5px}.site-header{height:92px;max-width:1240px;margin:auto;display:flex;align-items:center;gap:36px;padding:0 36px}.brand{display:flex;align-items:center;gap:10px;font-weight:900;font-size:24px;white-space:nowrap}.brand-icon{background:#203452;color:#ffce83;width:36px;height:36px;display:grid;place-items:center;border-radius:10px}.brand-en{font-size:10px;letter-spacing:2px;margin-left:6px;font-weight:600}.header-note{font-size:13px;color:var(--muted);flex:1}.header-link{font-size:14px;font-weight:700;border-bottom:3px solid var(--orange);padding:12px 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min(78vh,900px);min-height:500px;background:#122740;border-radius:12px;overflow:hidden;position:relative}.game-screen iframe{width:100%;height:100%;border:0;background:#e9eff2}.game-screen:fullscreen{height:100vh;border-radius:0}.controls{display:flex;flex-wrap:wrap;gap:18px;margin:22px 0;font-size:12px;align-items:center}.controls kbd{background:white;border:1px solid #d2dce9;border-bottom-width:3px;padding:5px 8px;border-radius:5px;margin-right:8px;font:12px inherit}.notice{background:#e8edf5;padding:14px 18px;border-radius:8px;font-size:12px;color:#65778f;line-height:1.8}.player-tip{color:#798ba3;font-size:12px;margin:12px 0}.error-page{padding:80px 20px;text-align:center}.error-page a{margin-top:20px}@media(max-width:850px){.brand-en,.header-note{display:none}.site-header{justify-content:space-between;height:76px;padding:0 22px}main{padding:8px 22px 45px}.hero-copy{padding:34px 0 32px 28px}.hero h1{font-size:36px}.hero{min-height:350px;grid-template-columns:1.1fr 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