*{box-sizing:border-box}body{margin:0;background:#020b18;color:#fff;font-family:Microsoft YaHei}aside{position:fixed;width:180px;height:100vh;background:#061a31;padding:25px 18px}nav div{padding:12px;margin:8px 0;color:#bcd0e8}.active{background:#1677ff;border-radius:8px}main{margin-left:180px;padding:35px}.cards{display:flex;gap:18px}.cards div,.panel{background:#071f3a;border:1px solid #174d80;border-radius:16px;padding:25px}.cards div{flex:1}button{background:#1683ff;color:white;border:0;border-radius:8px;padding:10px 20px}table{width:100%;margin-top:20px}td,th{padding:15px;border-bottom:1px solid #174d80;text-align:left}