* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif; background: #f4f6fa; color: #1f2937; }
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg,#1e3a8a,#0f766e); }
.login-card { background: #fff; padding: 40px 32px; border-radius: 14px; width: 340px; box-shadow: 0 12px 40px rgba(0,0,0,.2); }
.login-card h1 { font-size: 20px; text-align: center; }
.login-card .sub { text-align: center; color: #6b7280; font-size: 12px; margin: 6px 0 22px; }
.login-card input { width: 100%; padding: 11px 12px; margin-bottom: 12px; border: 1px solid #d1d5db; border-radius: 8px; font-size: 14px; }
.login-card button { width: 100%; padding: 11px; background: #1e3a8a; color: #fff; border: none; border-radius: 8px; font-size: 15px; cursor: pointer; }
.login-card button:hover { background: #1d4ed8; }
.error { color: #dc2626; font-size: 13px; margin-top: 8px; min-height: 16px; text-align: center; }

.app { display: flex; min-height: 100vh; }
.sidebar { width: 220px; background: #0f172a; color: #e2e8f0; display: flex; flex-direction: column; }
.brand { padding: 20px 18px; font-size: 18px; font-weight: 700; color: #fff; border-bottom: 1px solid #1e293b; }
.sidebar nav { flex: 1; padding: 10px 0; }
.sidebar nav a { display: block; padding: 12px 20px; color: #cbd5e1; cursor: pointer; font-size: 14px; border-left: 3px solid transparent; }
.sidebar nav a:hover { background: #1e293b; color: #fff; }
.sidebar nav a.active { background: #1e293b; color: #fff; border-left-color: #38bdf8; }
.side-foot { padding: 14px 18px; border-top: 1px solid #1e293b; }
.admin-name { font-size: 13px; color: #94a3b8; margin-bottom: 8px; }
.ghost { background: transparent; border: 1px solid #475569; color: #cbd5e1; padding: 7px 10px; border-radius: 7px; cursor: pointer; width: 100%; }
.ghost:hover { background: #1e293b; }

.main { flex: 1; display: flex; flex-direction: column; }
.topbar { padding: 16px 24px; background: #fff; border-bottom: 1px solid #e5e7eb; }
.topbar h2 { font-size: 18px; }
.content { padding: 24px; overflow: auto; }

.cards { display: grid; grid-template-columns: repeat(auto-fill,minmax(180px,1fr)); gap: 16px; margin-bottom: 20px; }
.card { background: #fff; border-radius: 12px; padding: 18px; box-shadow: 0 1px 3px rgba(0,0,0,.06); }
.card .num { font-size: 26px; font-weight: 700; color: #1e3a8a; }
.card .lbl { color: #6b7280; font-size: 13px; margin-top: 4px; }

.panel { background: #fff; border-radius: 12px; padding: 18px; box-shadow: 0 1px 3px rgba(0,0,0,.06); margin-bottom: 18px; }
.panel h3 { font-size: 15px; margin-bottom: 14px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid #f1f5f9; }
th { color: #6b7280; font-weight: 600; background: #f8fafc; }
tbody tr:hover { background: #f8fafc; }

.cfg-sec { border: 1px solid #eef2f7; border-radius: 10px; padding: 14px 16px; margin-bottom: 14px; background: #fcfdff; }
.cfg-sec h4 { font-size: 14px; color: #0f172a; margin-bottom: 10px; padding-bottom: 6px; border-bottom: 2px solid #e2e8f0; }
.cfg-sec .row label { min-width: 230px; color: #374151; }

button.btn { background: #1e3a8a; color: #fff; border: none; padding: 8px 14px; border-radius: 7px; cursor: pointer; font-size: 13px; }
button.btn:hover { background: #1d4ed8; }
button.btn.sm { padding: 5px 10px; font-size: 12px; }
button.danger { background: #dc2626; }
button.danger:hover { background: #b91c1c; }
button.warn { background: #d97706; }
button.ghost2 { background: #fff; border: 1px solid #d1d5db; color: #374151; }
input.in, select.in, textarea.in { padding: 8px 10px; border: 1px solid #d1d5db; border-radius: 7px; font-size: 13px; width: 100%; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 12px; }
.tag { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 12px; }
.tag.on { background: #dcfce7; color: #166534; }
.tag.off { background: #fee2e2; color: #991b1b; }
.tag.info { background: #e0f2fe; color: #075985; }
.muted { color: #94a3b8; }
.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); background: #111827; color: #fff; padding: 10px 18px; border-radius: 8px; opacity: 0; transition: .25s; pointer-events: none; font-size: 14px; }
.toast.show { opacity: 1; }
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.45); display: flex; align-items: center; justify-content: center; }
.modal .box { background: #fff; border-radius: 12px; padding: 22px; width: 420px; }
.modal .box h3 { margin-bottom: 14px; }
.modal .box .row { margin-top: 6px; }
.right { float: right; }