:root{
  --brand:#2563eb;
  --brand2:#06b6d4;
  --brand-ink:#0b3aa5;
  --ink:#0f172a;
  --ink2:#334155;
  --muted:#64748b;
  --bg:#eef3f9;
  --card:#ffffff;
  --line:#e2e8f0;
  --line2:#cbd5e1;
  --ok:#10b981;
  --warn:#f59e0b;
  --danger:#ef4444;
  --shadow:0 10px 30px rgba(15,23,42,.08);
  --radius:16px;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--ink);font-size:14px;line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none}
button{font:inherit}
button,input,select,textarea{font:inherit;color:inherit}
.boot{padding:80px 24px;text-align:center;color:var(--muted)}
.mono{font-family:var(--mono)}
.muted{color:var(--muted)}
.small{font-size:12px}
.hidden{display:none!important}

/* ---------- buttons ---------- */
.btn{
  border:0;border-radius:10px;padding:10px 16px;cursor:pointer;font-weight:600;
  background:var(--brand);color:#fff;display:inline-flex;align-items:center;gap:8px;
  transition:transform .12s ease, box-shadow .12s ease, background .12s ease;
  box-shadow:0 6px 16px rgba(37,99,235,.22);
}
.btn:hover{background:#1d4ed8;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}
.btn.ghost{background:#fff;color:var(--ink2);border:1px solid var(--line2);box-shadow:none}
.btn.ghost:hover{background:#f8fafc;border-color:#94a3b8}
.btn.soft{background:#e0edff;color:var(--brand-ink);box-shadow:none}
.btn.soft:hover{background:#d0e2ff}
.btn.danger{background:#fee2e2;color:#b91c1c;box-shadow:none}
.btn.danger:hover{background:#fecaca}
.btn.sm{padding:7px 11px;font-size:12.5px;border-radius:9px;box-shadow:none}
.btn.block{width:100%;justify-content:center;padding:12px 16px}

/* ---------- auth ---------- */
.auth{
  min-height:100vh;display:flex;align-items:center;justify-content:center;padding:28px 18px;
  background:
    radial-gradient(900px 500px at 15% 0%,rgba(6,182,212,.22),transparent 60%),
    radial-gradient(800px 500px at 90% 100%,rgba(37,99,235,.35),transparent 60%),
    linear-gradient(135deg,#0b1120,#0f172a 45%,#102a43);
}
.auth-card{
  width:100%;max-width:440px;background:rgba(255,255,255,.98);border-radius:22px;
  box-shadow:0 30px 80px rgba(0,0,0,.35);padding:30px 30px 26px;position:relative;overflow:hidden;
}
.auth-card:before{
  content:"";position:absolute;inset:0 0 auto 0;height:4px;
  background:linear-gradient(90deg,var(--brand),var(--brand2));
}
.brand{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.brand-logo{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;color:#fff;font-weight:800;font-size:20px;
  background:linear-gradient(135deg,var(--brand),var(--brand2));box-shadow:0 8px 20px rgba(37,99,235,.35);
}
.brand-title{font-size:18px;font-weight:800;letter-spacing:.2px}
.brand-sub{font-size:12px;color:var(--muted);margin-top:1px}
.auth h1{font-size:22px;margin:8px 0 4px}
.auth .lead{color:var(--muted);margin:0 0 18px;font-size:13px}
.tabs{display:flex;background:#f1f5f9;border-radius:12px;padding:4px;margin-bottom:18px}
.tabs button{flex:1;border:0;background:transparent;border-radius:9px;padding:8px 10px;cursor:pointer;font-weight:700;color:var(--muted)}
.tabs button.on{background:#fff;color:var(--ink);box-shadow:0 3px 10px rgba(15,23,42,.08)}
.field{margin-bottom:13px}
.field label{display:block;font-size:12.5px;font-weight:700;color:var(--ink2);margin-bottom:6px}
.field input,.field select{
  width:100%;border:1px solid var(--line2);border-radius:10px;padding:11px 12px;background:#fff;outline:none;
  transition:border .15s, box-shadow .15s;
}
.field input:focus,.field select:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(37,99,235,.14)}
.field .hint{font-size:11.5px;color:var(--muted);margin-top:5px}
.form-error{background:#fef2f2;border:1px solid #fecaca;color:#b91c1c;border-radius:10px;padding:9px 11px;font-size:12.5px;margin-bottom:12px;display:none}
.form-error.show{display:block}
.auth-foot{margin-top:16px;font-size:11.5px;color:var(--muted);text-align:center;line-height:1.6}

/* ---------- user shell ---------- */
.shell{min-height:100vh;display:flex;flex-direction:column}
.topbar{
  background:linear-gradient(120deg,#0f172a,#152a54 55%,#0e4f6b);
  color:#fff;padding:0 22px;position:sticky;top:0;z-index:20;
  box-shadow:0 8px 24px rgba(15,23,42,.18);
}
.topbar-in{max-width:1180px;margin:0 auto;height:64px;display:flex;align-items:center;gap:18px}
.brand-mini{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.2px;white-space:nowrap}
.brand-mini .mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand2));font-size:15px;
}
.nav{display:flex;gap:6px;margin-left:8px}
.nav a{padding:8px 12px;border-radius:9px;color:#cbd5e1;font-weight:600;font-size:13px;cursor:pointer}
.nav a:hover{background:rgba(255,255,255,.09);color:#fff}
.nav a.on{background:rgba(255,255,255,.14);color:#fff}
.userbox{margin-left:auto;display:flex;align-items:center;gap:12px;font-size:12.5px;color:#cbd5e1}
.userbox b{color:#fff;font-size:13px}
.avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,#38bdf8,#2563eb);display:grid;place-items:center;color:#fff;font-weight:800;font-size:13px}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:24px 22px 60px;flex:1}

.hero{
  background:linear-gradient(120deg,#ffffff,#f0f7ff);
  border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow);
  display:flex;align-items:center;gap:18px;justify-content:space-between;margin-bottom:18px;
}
.hero h1{margin:0 0 4px;font-size:22px;letter-spacing:.2px}
.hero p{margin:0;color:var(--muted);font-size:13px}
.hero .pill{background:#e0f2fe;color:#0369a1;border-radius:999px;padding:6px 12px;font-size:12px;font-weight:700;white-space:nowrap}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:22px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;box-shadow:var(--shadow)}
.stat .k{font-size:12px;color:var(--muted);font-weight:600}
.stat .v{font-size:26px;font-weight:800;letter-spacing:.3px;margin-top:4px}
.stat .s{font-size:11.5px;color:var(--muted);margin-top:2px}
.stat .v small{font-size:12px;color:var(--muted);font-weight:600}

.toolbar{display:flex;align-items:center;gap:12px;margin:0 0 14px}
.toolbar h2{font-size:16px;margin:0;flex:1}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.device-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px;min-width:0;
  transition:transform .15s ease, box-shadow .15s ease;
}
.device-card:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(15,23,42,.12)}
.dc-head{display:flex;align-items:flex-start;gap:10px}
.dc-name{font-weight:800;font-size:15.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.dc-sub{font-size:11.5px;color:var(--muted);font-family:var(--mono);margin-top:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.dc-state{margin-left:auto;display:flex;align-items:center;gap:6px;font-size:12px;font-weight:700;white-space:nowrap}
.dot{width:8px;height:8px;border-radius:50%;background:#cbd5e1;display:inline-block}
.dot.on{background:var(--ok);box-shadow:0 0 0 4px rgba(16,185,129,.13)}
.dot.warn{background:var(--warn)}
.dc-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;background:#f8fafc;border:1px solid var(--line);border-radius:12px;padding:10px}
.dc-stats div{min-width:0}
.dc-stats b{display:block;font-size:16px;letter-spacing:.2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.dc-stats span{font-size:11px;color:var(--muted)}
.dc-license{display:flex;flex-wrap:wrap;gap:6px;align-items:center;font-size:11.5px;color:var(--muted)}
.tag{display:inline-flex;align-items:center;border-radius:999px;padding:4px 9px;font-size:11.5px;font-weight:700;background:#f1f5f9;color:#475569}
.tag.ok{background:#dcfce7;color:#047857}
.tag.warn{background:#fef3c7;color:#b45309}
.tag.info{background:#dbeafe;color:#1d4ed8}
.tag.bad{background:#fee2e2;color:#b91c1c}
.dc-actions{display:flex;gap:8px;margin-top:auto}

.empty{
  background:var(--card);border:1px dashed var(--line2);border-radius:var(--radius);
  padding:50px 24px;text-align:center;color:var(--muted);grid-column:1/-1;
}
.empty .big{font-size:34px;margin-bottom:8px}
.empty h3{color:var(--ink);margin:0 0 6px}

/* ---------- detail ---------- */
.back{display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-size:13px;cursor:pointer;margin-bottom:14px}
.back:hover{color:var(--brand)}
.detail-head{display:flex;align-items:flex-start;gap:14px;flex-wrap:wrap;margin-bottom:16px}
.detail-head h1{font-size:22px;margin:0}
.detail-head .sub{color:var(--muted);font-size:12.5px;margin-top:3px;font-family:var(--mono)}
.detail-head .actions{margin-left:auto;display:flex;gap:8px;flex-wrap:wrap}
.info-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:18px}
.info{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 14px;min-width:0}
.info .k{font-size:11.5px;color:var(--muted)}
.info .v{font-size:15px;font-weight:700;margin-top:3px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:18px;overflow:hidden}
.panel-head{display:flex;align-items:center;gap:12px;padding:15px 18px;border-bottom:1px solid var(--line)}
.panel-head h2{font-size:15px;margin:0;flex:1}
.panel-body{padding:16px 18px}
.license-types{display:flex;gap:10px;flex-wrap:wrap}
.ltype{
  border:1px solid var(--line2);background:#fff;border-radius:12px;padding:12px 14px;min-width:180px;cursor:pointer;text-align:left;
  transition:border .15s, box-shadow .15s, transform .15s;
}
.ltype:hover{border-color:var(--brand);box-shadow:0 8px 20px rgba(37,99,235,.12);transform:translateY(-1px)}
.ltype.on{border-color:var(--brand);background:#eff6ff;box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.ltype b{display:block;font-size:14px}
.ltype span{display:block;font-size:11.5px;color:var(--muted);margin-top:3px}
.table-wrap{overflow:auto}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{text-align:left;padding:11px 12px;border-bottom:1px solid var(--line);white-space:nowrap}
th{font-size:11.5px;color:var(--muted);font-weight:700;background:#f8fafc;position:sticky;top:0}
tr:last-child td{border-bottom:0}
td .mini{font-size:11.5px;color:var(--muted)}
.ch-name{font-weight:700}
.ch-actions{text-align:right}
.err-box{background:#fef2f2;border:1px solid #fecaca;color:#b91c1c;border-radius:10px;padding:10px 12px;font-size:12.5px}

/* ---------- modal ---------- */
.modal-mask{position:fixed;inset:0;background:rgba(15,23,42,.55);backdrop-filter:blur(3px);z-index:100;display:flex;align-items:center;justify-content:center;padding:18px}
.modal{background:#fff;border-radius:18px;box-shadow:0 30px 80px rgba(0,0,0,.35);width:100%;max-width:460px;max-height:90vh;overflow:auto;padding:22px}
.modal.wide{max-width:860px}
.modal h3{margin:0 0 4px;font-size:18px}
.modal .sub{color:var(--muted);font-size:12.5px;margin-bottom:14px}
.modal .row{display:flex;gap:10px;justify-content:flex-end;margin-top:18px}
.modal-head{display:flex;align-items:flex-start;gap:10px}
.modal-head .x{margin-left:auto;border:0;background:#f1f5f9;width:32px;height:32px;border-radius:50%;cursor:pointer;font-size:18px;color:var(--muted);line-height:1}
.modal-head .x:hover{background:#e2e8f0;color:var(--ink)}
video{width:100%;border-radius:12px;background:#000;aspect-ratio:16/9}
.player-note{font-size:12px;color:var(--muted);margin-top:8px}

/* ---------- toast ---------- */
.toast-host{position:fixed;top:18px;right:18px;z-index:200;display:flex;flex-direction:column;gap:8px;pointer-events:none}
.toast{
  background:#0f172a;color:#fff;border-radius:11px;padding:10px 14px;font-size:13px;
  box-shadow:0 12px 30px rgba(0,0,0,.25);animation:toastIn .18s ease;max-width:360px;
}
.toast.ok{background:#065f46}
.toast.err{background:#991b1b}
@keyframes toastIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

/* ---------- admin ---------- */
.admin{min-height:100vh;display:flex;background:#0b1120;color:#e2e8f0}
.admin-side{width:228px;background:#0f172a;border-right:1px solid #1e293b;padding:22px 16px;display:flex;flex-direction:column;gap:18px;position:sticky;top:0;height:100vh}
.admin-brand{display:flex;align-items:center;gap:10px;font-weight:800}
.admin-brand .mark{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--brand2));font-size:15px}
.admin-brand small{display:block;color:#94a3b8;font-weight:500;font-size:11px}
.admin-nav{display:flex;flex-direction:column;gap:4px}
.admin-nav button{border:0;background:transparent;color:#94a3b8;text-align:left;padding:10px 12px;border-radius:10px;cursor:pointer;font-weight:600}
.admin-nav button:hover{background:#1e293b;color:#fff}
.admin-nav button.on{background:linear-gradient(90deg,rgba(37,99,235,.35),rgba(6,182,212,.18));color:#fff}
.admin-side .foot{margin-top:auto;font-size:11px;color:#64748b;line-height:1.5}
.admin-main{flex:1;min-width:0;display:flex;flex-direction:column}
.admin-top{height:64px;display:flex;align-items:center;gap:14px;padding:0 24px;border-bottom:1px solid #1e293b;background:rgba(15,23,42,.7);position:sticky;top:0;z-index:10;backdrop-filter:blur(8px)}
.admin-top h1{font-size:16px;margin:0;flex:1}
.admin-top .muted{color:#94a3b8;font-size:12px}
.admin-body{padding:24px;max-width:1320px;width:100%;margin:0 auto}
.admin .stat{background:#0f172a;border-color:#1e293b;box-shadow:none}
.admin .stat .v{color:#fff}
.admin .stat .k,.admin .stat .s{color:#94a3b8}
.admin .panel{background:#0f172a;border-color:#1e293b;box-shadow:none}
.admin .panel-head{border-color:#1e293b}
.admin .panel-head h2{color:#fff}
.admin table th{background:#111c33;color:#94a3b8;border-color:#1e293b}
.admin table td{border-color:#1e293b;color:#e2e8f0}
.admin .mini{color:#94a3b8}
.admin select{background:#111c33;color:#e2e8f0;border:1px solid #334155;border-radius:8px;padding:6px 8px;font-size:12px}
.admin .btn.ghost{background:#111c33;color:#e2e8f0;border-color:#334155}
.admin .btn.ghost:hover{background:#1e293b}
.admin .tag{background:#1e293b;color:#cbd5e1}
.admin .tag.ok{background:rgba(16,185,129,.16);color:#6ee7b7}
.admin .tag.warn{background:rgba(245,158,11,.16);color:#fcd34d}
.admin .tag.info{background:rgba(37,99,235,.2);color:#93c5fd}
.admin .tag.bad{background:rgba(239,68,68,.16);color:#fca5a5}
.admin-login{min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(800px 500px at 20% 0%,rgba(37,99,235,.25),transparent 60%),#0b1120;padding:20px}
.admin-login .auth-card{max-width:420px;background:#0f172a;color:#e2e8f0;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.admin-login .auth-card:before{background:linear-gradient(90deg,var(--brand),var(--brand2))}
.admin-login .brand-title{color:#fff}
.admin-login .brand-sub,.admin-login .lead{color:#94a3b8}
.admin-login .field label{color:#cbd5e1}
.admin-login .field input{background:#111c33;border-color:#334155;color:#fff}
.admin-login .field input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(37,99,235,.25)}

.footer-legal{margin-top:28px;text-align:center;font-size:11px;color:#94a3b8;line-height:1.7}
.footer-legal b{color:#64748b}

@media (max-width:960px){
  .stats{grid-template-columns:repeat(2,1fr)}
  .grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .info-grid{grid-template-columns:repeat(2,1fr)}
  .admin-side{width:76px;padding:18px 8px;align-items:center}
  .admin-brand span.txt,.admin-brand small,.admin-side .foot{display:none}
  .admin-nav button{font-size:0;padding:11px;width:44px;text-align:center}
  .admin-nav button:first-letter{font-size:16px}
}
@media (max-width:640px){
  .topbar{padding:0 14px}
  .topbar-in{height:58px;gap:10px}
  .brand-mini .txt{display:none}
  .nav{gap:2px;margin-left:0}
  .nav a{padding:7px 9px;font-size:12px}
  .userbox .who{display:none}
  .wrap{padding:18px 14px 44px}
  .hero{padding:18px;flex-direction:column;align-items:flex-start;gap:10px}
  .hero h1{font-size:19px}
  .stats{grid-template-columns:repeat(2,1fr);gap:10px}
  .grid{grid-template-columns:1fr}
  .info-grid{grid-template-columns:repeat(2,1fr)}
  .detail-head .actions{margin-left:0;width:100%}
  .panel-body{padding:12px}
  .admin{flex-direction:column}
  .admin-side{width:100%;height:auto;position:static;flex-direction:row;align-items:center;padding:10px 14px;overflow:auto}
  .admin-brand span.txt,.admin-brand small{display:block}
  .admin-nav{flex-direction:row;margin-left:auto}
  .admin-nav button{width:auto;font-size:12px;padding:8px 10px}
  .admin-top{padding:0 14px}
  .admin-body{padding:14px}
  .modal{padding:18px}
}