:root{
  --bg:#0e1320; --panel:#161c2b; --panel-2:#1e2637; --line:#273049;
  --text:#e6ebf5; --muted:#8b96ad; --primary:#2f7bff; --primary-d:#1f63d6;
  --ok:#22c55e; --off:#6b7280; --danger:#ef4444; --radius:14px;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--bg);color:var(--text);
  font:14px/1.55 system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
.hidden{display:none !important}
.muted{color:var(--muted)}
.spacer{flex:1}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:20px}
.brand.small{font-size:16px}
.logo-dot{width:22px;height:22px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,#5ea0ff,#1f63d6);display:inline-block}
.brand.small .logo-dot{width:18px;height:18px}

/* 登录 */
.auth-wrap{height:100%;display:grid;place-items:center;
  background:radial-gradient(1200px 600px at 50% -10%,#1a2banimationplaceholder,transparent),var(--bg)}
.auth-card{width:360px;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius);padding:28px;box-shadow:0 20px 60px rgba(0,0,0,.45)}
.auth-card .sub{color:var(--muted);margin:6px 0 18px}
.tabs{display:flex;gap:6px;margin-bottom:16px;background:var(--panel-2);padding:4px;border-radius:10px}
.tab{flex:1;background:none;border:0;color:var(--muted);padding:8px;border-radius:8px;cursor:pointer}
.tab.active{background:var(--primary);color:#fff}
.form{display:flex;flex-direction:column;gap:10px}
input{background:var(--panel-2);border:1px solid var(--line);border-radius:10px;
  color:var(--text);padding:11px 12px;outline:none}
input:focus{border-color:var(--primary)}
.btn-primary{background:var(--primary);border:0;color:#fff;padding:11px;border-radius:10px;
  cursor:pointer;font-weight:600}
.btn-primary:hover{background:var(--primary-d)}
.btn-ghost{background:var(--panel-2);border:1px solid var(--line);color:var(--text);
  padding:7px 12px;border-radius:9px;cursor:pointer}
.msg{min-height:20px;margin-top:12px;color:var(--danger);font-size:13px}

/* 控制台 */
.topbar{height:56px;display:flex;align-items:center;gap:12px;padding:0 18px;
  background:var(--panel);border-bottom:1px solid var(--line)}
.container{max-width:1080px;margin:0 auto;padding:24px 18px}
.toolbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.toolbar h2{margin:0;font-size:18px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px;transition:.15s;position:relative}
.card:hover{border-color:var(--primary);transform:translateY(-2px)}
.card .name{font-weight:600;font-size:15px;display:flex;align-items:center;gap:8px}
.dot{width:9px;height:9px;border-radius:50%;background:var(--off)}
.dot.on{background:var(--ok);box-shadow:0 0 8px var(--ok)}
.card .code{color:var(--muted);margin:8px 0 2px;font-size:13px}
.card .actions{display:flex;gap:8px;margin-top:14px}
.btn-connect{flex:1;background:var(--primary);border:0;color:#fff;padding:9px;border-radius:9px;cursor:pointer}
.btn-connect:disabled{background:var(--panel-2);color:var(--muted);cursor:not-allowed}
.btn-del{background:none;border:1px solid var(--line);color:var(--muted);border-radius:9px;padding:9px 11px;cursor:pointer}
.empty{color:var(--muted);text-align:center;padding:60px 0}

/* 弹窗 */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.55);display:grid;place-items:center;z-index:30}
.modal-card{width:420px;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius);padding:24px}
.kv,.serverline{display:flex;align-items:center;gap:10px;margin:14px 0}
.kv span{width:64px;color:var(--muted)}
.kv code,.serverline code{flex:1;background:var(--panel-2);border:1px solid var(--line);
  border-radius:8px;padding:8px 10px;font-size:15px;letter-spacing:1px}
.copy{background:var(--panel-2);border:1px solid var(--line);color:var(--text);
  border-radius:8px;padding:8px 10px;cursor:pointer}
#modalOk{width:100%;margin-top:12px}

/* 会话 */
#session{display:flex;flex-direction:column;height:100%}
.badge{background:var(--panel-2);border:1px solid var(--line);color:var(--muted);
  padding:3px 10px;border-radius:20px;font-size:12px}
.badge.on{color:var(--ok);border-color:var(--ok)}
.stage{flex:1;overflow:auto;background:#05070d;display:grid;place-items:center}
#remote{max-width:100%;max-height:100%;display:block;cursor:crosshair}
#rvideo{max-width:100%;max-height:100%;display:block;cursor:crosshair;background:#000}
.file-panel{position:fixed;right:18px;top:64px;width:340px;background:var(--panel);
  border:1px solid var(--line);border-radius:12px;padding:16px;z-index:35;box-shadow:0 10px 30px rgba(0,0,0,.4)}
.file-panel h4{margin:0 0 12px}
.file-row{display:flex;flex-direction:column;gap:6px;margin-bottom:12px;font-size:13px;color:var(--muted)}
.file-row input[type=text],.file-row input:not([type=file]){background:var(--panel-2);border:1px solid var(--line);
  border-radius:8px;padding:8px;color:var(--text)}
.file-row .btn-ghost{align-self:flex-start}
.toast{position:fixed;right:18px;bottom:18px;max-width:360px;background:var(--panel-2);
  border:1px solid var(--line);border-radius:10px;padding:10px 14px;box-shadow:0 10px 30px rgba(0,0,0,.4);
  white-space:pre-wrap;word-break:break-all;z-index:40}