body{font-family:"Microsoft YaHei";padding:20px;background:#f4f6f9}
.container{max-width:1300px;margin:0 auto}
.card{background:#fff;padding:20px;border-radius:6px;box-shadow:0 1px 4px #00000015;margin-bottom:16px}
table{width:100%;border-collapse:collapse;margin:10px 0}
th,td{border:1px solid #ddd;padding:8px 10px;text-align:center}
th{background:#eef2f7}
input,select,textarea{padding:6px;width:100%;border:1px solid #ccc;border-radius:4px;margin:4px 0}
button{padding:7px 14px;background:#2779bd;color:white;border:none;border-radius:4px;cursor:pointer;margin:3px}
.btn-danger{background:#d04848}
.btn-success{background:#29a363}
.top-nav{margin-bottom:15px}
.top-nav a{margin-right:12px;padding:6px 10px;background:#eef2f7;text-decoration:none;color:#222;border-radius:4px}
.flash{padding:10px;background:#d9edf7;border:1px solid #bce8f1;margin:8px 0}
.row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px;margin:6px 0}