:root{color:#213547;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#f0f2f5;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;font-weight:400;line-height:1.5}*{box-sizing:border-box;margin:0;padding:0}body{min-width:320px;min-height:100vh;margin:0}#root{width:100%;max-width:1200px;margin:0 auto;padding:20px}*{box-sizing:border-box}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#f0f2f5;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif}.app-container{max-width:1400px;margin:0 auto;padding:24px}.title{text-align:center;color:#1890ff;margin-bottom:32px!important}.game-layout{align-items:flex-start;gap:24px;display:flex}.left-panel{flex:0 0 320px;min-width:280px}.right-panel{flex:1;min-width:0}@media (width<=900px){.game-layout{flex-direction:column}.left-panel{flex:none;width:100%}.right-panel{width:100%}}.board{aspect-ratio:1;touch-action:none;background:#8b4513;border:2px solid #8b4513;border-radius:4px;grid-template-rows:repeat(15,1fr);grid-template-columns:repeat(15,1fr);gap:2px;width:100%;max-width:600px;margin:0 auto;padding:2px;display:grid}.cell-wrapper{aspect-ratio:1;cursor:pointer;background:#e8c87a;justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.cell-wrapper:hover .cell.empty:after{content:"";background:#0003;border-radius:50%;width:60%;height:60%;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.cell{z-index:2;border-radius:50%;width:100%;max-width:36px;height:100%;max-height:36px;transition:transform .15s;position:relative;box-shadow:2px 2px 4px #0000004d}.cell.stone{box-shadow:2px 2px 4px #0000004d}.cell.stone.black{background:linear-gradient(135deg,#4a4a4a 0%,#2a2a2a 100%);border:1px solid #1a1a1a}.cell.stone.white{background:linear-gradient(135deg,#fff 0%,#e0e0e0 100%);border:1px solid #ccc}.cell.stone:hover{transform:scale(1.05)}.ant-card{border-radius:12px;box-shadow:0 2px 8px #0000001a}.ant-alert{border-radius:8px}.ant-btn-primary{background:#1890ff;border-color:#1890ff}.ant-btn-primary:hover{background:#40a9ff;border-color:#40a9ff}@media (width<=768px){.app-container{padding:16px}.board{gap:1px;max-width:100%;padding:2px}.cell{max-width:28px;max-height:28px}}@media (width<=480px){.board{gap:1px;padding:1px}.cell{max-width:24px;max-height:24px}}