*{box-sizing:border-box}
body{margin:0;font-family:Arial,"Microsoft YaHei",sans-serif;background:#f5f7fb;color:#1f2937}
a{text-decoration:none;color:inherit}
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0f172a,#1d4ed8)}
.login-card{width:390px;background:#fff;border-radius:18px;padding:32px;box-shadow:0 20px 50px rgba(0,0,0,.25)}
.login-title{font-size:26px;font-weight:700;margin-bottom:8px}
.login-sub{color:#6b7280;margin-bottom:24px}
.lang-row{display:flex;justify-content:flex-end;margin-bottom:14px}
.lang-select{height:34px;border:1px solid #d1d5db;border-radius:8px;padding:0 8px;background:#fff}
.input{width:100%;height:44px;border:1px solid #d1d5db;border-radius:10px;padding:0 12px;margin-bottom:14px}
.btn{height:40px;border:0;border-radius:10px;padding:0 16px;cursor:pointer;background:#2563eb;color:#fff}
.btn.full{width:100%;height:46px}
.err{color:#dc2626;margin-top:12px;font-size:14px;min-height:20px}
.app{display:flex;height:100vh}
.sidebar{width:240px;background:#111827;color:#e5e7eb;overflow:auto}
.brand{height:60px;display:flex;align-items:center;padding:0 20px;font-size:20px;font-weight:700;border-bottom:1px solid #374151}
.menu-item{padding:12px 20px;cursor:pointer;color:#d1d5db}
.menu-item:hover,.menu-item.active{background:#1d4ed8;color:white}
.menu-child{padding-left:18px}
.main{flex:1;display:flex;flex-direction:column;overflow:hidden}
.topbar{height:60px;background:#fff;border-bottom:1px solid #e5e7eb;display:flex;align-items:center;justify-content:space-between;padding:0 20px}
.content{flex:1;overflow:auto;padding:20px}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.card{background:#fff;border-radius:16px;padding:18px;box-shadow:0 4px 16px rgba(15,23,42,.08);border:1px solid #eef2f7}
.card-title{font-weight:700;font-size:17px;margin-bottom:8px}
.card-desc{font-size:13px;color:#6b7280;line-height:1.5}
.table-wrap{background:#fff;border-radius:16px;padding:16px;box-shadow:0 4px 16px rgba(15,23,42,.08);overflow:auto}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{border-bottom:1px solid #eef2f7;padding:10px;text-align:left;white-space:nowrap}
th{background:#f9fafb;color:#374151}
.badge{display:inline-block;padding:3px 8px;border-radius:999px;background:#eef2ff;color:#1d4ed8;font-size:12px}