.perspective{perspective:1000px}.transform-style-preserve-3d{transform-style:preserve-3d}.backface-hidden{backface-visibility:hidden}.rotate-y-180{transform:rotateY(180deg)}.card-inner{transition:transform .6s;transform-style:preserve-3d}.card-inner:hover{transform:rotateY(180deg)}.card-back,.card-front{position:absolute;top:0;left:0;width:100%;height:100%;backface-visibility:hidden}.card-back,.card-front{background-color:#fff}.card-back{transform:rotateY(180deg);display:flex;align-items:center;justify-content:center;flex-direction:column;padding:16px}.card-back p{text-align:center;font-size:16px;color:#1e3a8a;margin-bottom:10px}.card-back .ant-btn{background-color:#2563eb;color:#1e3a8a;border:none}