[hidden]{display:none!important}
body{margin:0;font-family:Arial,"Microsoft YaHei",sans-serif;background:#f3f4f6;color:#172033}
.login{min-height:100vh;display:grid;place-items:center;padding:24px}
.login-card{width:min(420px,100%);background:#fff;border:1px solid #e5e7eb;border-radius:8px;padding:24px;box-shadow:0 16px 40px rgba(15,23,42,.08)}
.login-card h1{margin:0 0 8px;font-size:24px}.login-card p{margin:0 0 18px;color:#667085}
.login-card label{display:block;font-size:13px;font-weight:700;margin:12px 0 6px}.login-card input,.field{width:100%;box-sizing:border-box;border:1px solid #cfd4dc;border-radius:6px;padding:10px 12px;background:#fff;color:#172033}
.btn{border:0;border-radius:6px;background:#172033;color:#fff;font-weight:700;padding:10px 14px;cursor:pointer}.btn.secondary{background:#eef2f6;color:#172033}.btn.warn{background:#b42318}.btn:disabled{opacity:.55;cursor:not-allowed}
.admin-shell{min-height:100vh;display:grid;grid-template-columns:240px 1fr}
.sidebar{background:#121826;color:#f9fafb;padding:20px 14px}.brand{font-size:20px;font-weight:800;margin-bottom:18px}.nav{display:grid;gap:6px}
.nav button{display:block;width:100%;text-align:left;border:0;border-radius:6px;background:transparent;color:#d0d5dd;padding:10px 12px;cursor:pointer}.nav button.active,.nav button:hover{background:#263044;color:#fff}
.main{padding:20px}.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px}.card{background:#fff;border:1px solid #e5e7eb;border-radius:8px;padding:14px;margin-bottom:12px}.card b{font-size:24px}
.panel{display:none}.panel.active{display:block}
table{width:100%;border-collapse:collapse;background:#fff;border:1px solid #e5e7eb;border-radius:8px;overflow:hidden}th,td{text-align:left;padding:10px;border-bottom:1px solid #eef2f6;font-size:13px}th{background:#f9fafb}
.actions{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}.status{min-height:20px;color:#475467}.danger{color:#b42318}.ok{color:#027a48}
@media(max-width:760px){.admin-shell{grid-template-columns:1fr}.sidebar{position:static}.main{padding:14px}.nav{grid-template-columns:repeat(2,1fr)}}