* { margin:0; padding:0; box-sizing:border-box; }
body { font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif; background:#f0f2f5; color:#333; font-size:14px; }
a { color:#3b82f6; text-decoration:none; }

/* 登录 */
.login-box { width:360px; margin:12vh auto; background:#fff; border-radius:12px; padding:36px 32px; box-shadow:0 8px 30px rgba(0,0,0,.08); text-align:center; }
.login-box h2 { font-size:22px; color:#1e293b; }
.login-box .sub { color:#94a3b8; margin:4px 0 20px; font-size:12px; letter-spacing:2px; }
.field { margin-bottom:16px; text-align:left; }
.field label { display:block; margin-bottom:6px; color:#64748b; font-size:13px; }
input { width:100%; border:1px solid #dbe1ea; border-radius:8px; padding:9px 12px; font-size:14px; outline:none; }
input:focus { border-color:#3b82f6; box-shadow:0 0 0 3px rgba(59,130,246,.12); }

/* 布局 */
.layout { display:flex; min-height:100vh; }
.side { width:210px; background:#0f172a; color:#fff; padding:0 0 20px; }
.side .brand { padding:20px; font-size:18px; font-weight:600; border-bottom:1px solid rgba(255,255,255,.08); margin-bottom:12px; }
.side nav a { display:block; padding:12px 20px; color:#cbd5e1; }
.side nav a:hover { background:rgba(255,255,255,.06); color:#fff; }
.side nav a.active { background:#3b82f6; color:#fff; }
.main { flex:1; padding:20px 24px 40px; }
.topbar { margin-bottom:18px; }
.topbar h1 { font-size:20px; color:#1e293b; }

.stats { display:flex; gap:14px; margin-bottom:20px; flex-wrap:wrap; }
.stat { background:#fff; border-radius:10px; padding:16px 22px; min-width:130px; box-shadow:0 2px 8px rgba(0,0,0,.05); }
.stat b { display:block; font-size:24px; color:#1e293b; }
.stat span { color:#94a3b8; font-size:12px; }

.card { background:#fff; border-radius:10px; padding:18px 20px; margin-bottom:18px; box-shadow:0 2px 8px rgba(0,0,0,.05); }
.card h3 { margin-bottom:14px; font-size:15px; color:#334155; }

.inline-form { display:flex; gap:8px; align-items:center; flex-wrap:wrap; }
.no-border { box-shadow:none; }
.inline-form input { width:auto; }
.table { width:100%; border-collapse:collapse; }
.table th { text-align:left; background:#f8fafc; color:#64748b; font-size:13px; padding:10px 8px; }
.table td { padding:10px 8px; border-top:1px solid #f1f5f9; vertical-align:middle; }
.table .empty { text-align:center; color:#94a3b8; padding:24px; }

.tag { display:inline-block; padding:2px 10px; border-radius:20px; font-size:12px; }
.tag-ok { background:#dcfce7; color:#16a34a; }
.tag-off { background:#fee2e2; color:#dc2626; }
.bar { width:90px; height:6px; background:#e2e8f0; border-radius:3px; margin-top:4px; overflow:hidden; }
.bar i { display:block; height:100%; background:#3b82f6; }

.btn { display:inline-block; border:1px solid #dbe1ea; background:#fff; color:#334155; border-radius:8px; padding:8px 14px; font-size:14px; cursor:pointer; }
.btn:hover { background:#f8fafc; }
.btn-primary { background:#3b82f6; border-color:#3b82f6; color:#fff; }
.btn-primary:hover { background:#2563eb; }
.btn-block { width:100%; }
.btn-small { padding:5px 10px; font-size:12px; border-radius:6px; }
.btn-ghost { background:transparent; border-color:#93c5fd; color:#3b82f6; }
.btn-danger { background:#fee2e2; border-color:#fecaca; color:#dc2626; }
.ops { display:flex; gap:6px; flex-wrap:wrap; }
.ops form { margin:0; }

.alert { padding:10px 14px; border-radius:8px; margin-bottom:14px; font-size:13px; }
.alert-danger { background:#fee2e2; color:#b91c1c; }