.chess-container{display:flex;flex-direction:column;align-items:center;padding:var(--space-5);background:var(--color-gray-100);min-height:100vh}.chess-header{margin-bottom:var(--space-5);text-align:center}.status{margin-top:10px;font-size:18px;font-weight:700}.status .red{color:#d00}.status .black{color:#333}.winner-text{color:#d00;font-size:var(--space-6);animation:pulse 1s infinite}.chess-board-wrapper{padding:15px;background:#deb887;border-radius:5px;box-shadow:0 5px 15px #0000004d}.chess-board{width:450px;height:500px;position:relative;background:#eecfa1;border:2px solid #8b4513}.chess-board:before{content:"";position:absolute;top:25px;left:25px;right:25px;bottom:25px;border:2px solid #8b4513;z-index:0}.chess-board:after{content:"";position:absolute;top:25px;left:25px;right:25px;bottom:25px;background-image:linear-gradient(#8b4513 1px,transparent 1px),linear-gradient(90deg,#8b4513 1px,transparent 1px);background-size:100% 50px,50px 100%;z-index:0}.square{position:absolute;width:11.11%;height:10%;display:flex;justify-content:center;align-items:center;z-index:10;cursor:pointer}.chess-piece{width:40px;height:40px;border-radius:var(--radius-full);background:#fdf5e6;border:2px solid #8b4513;display:flex;justify-content:center;align-items:center;font-size:var(--space-6);font-weight:700;box-shadow:2px 2px 5px #0000004d;-webkit-user-select:none;user-select:none;font-family:KaiTi,STKaiti,serif}.chess-piece.red{color:#d00;border-color:#d00}.chess-piece.black{color:#333;border-color:#333}.selected .chess-piece{box-shadow:0 0 10px 5px #ffa500b3;transform:scale(1.1)}.last-move-src:after{content:"";position:absolute;width:10px;height:10px;background:#0000ff4d;border-radius:var(--radius-full)}.last-move-dest .chess-piece{box-shadow:0 0 0 3px #0000ff4d}@media (max-width: 500px){.chess-board{width:324px;height:360px}.chess-piece{width:30px;height:30px;font-size:18px}}