:root{
  --bg:#f5f7fa; --panel:#ffffff; --ink:#1f2937; --muted:#6b7280; --line:#e5e7eb;
  --brand:#2563eb; --brand-soft:#eff6ff; --ok:#0f766e; --ok-soft:#ecfdf5;
  --warn:#b45309; --warn-soft:#fffbeb; --bad:#b91c1c; --bad-soft:#fef2f2;
  --radius:12px; --topbar-h:46px;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--ink); font-size:14px; line-height:1.6;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",Arial,sans-serif;
}
a{color:inherit;text-decoration:none}
code{font-family:Consolas,"SFMono-Regular",Menlo,monospace;font-size:12px;background:#f3f4f6;padding:1px 5px;border-radius:4px;color:#374151}
h1,h2,h3{margin:0;font-weight:600}
h1{font-size:22px;letter-spacing:.2px}
h2{font-size:15px;margin-bottom:6px}

.app-shell{display:block;min-height:100vh}
.topbar{
  display:flex;align-items:center;gap:10px;height:var(--topbar-h);padding:0 12px;
  background:var(--panel);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:50;white-space:nowrap;
}
.tb-brand{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.tb-brand strong{font-size:13px;letter-spacing:.2px}
.brand-mark{width:24px;height:24px;border-radius:7px;background:var(--brand);flex:0 0 24px;position:relative}
.brand-mark:after{content:"";position:absolute;left:6px;bottom:6px;width:3px;height:6px;background:#fff;border-radius:1px;box-shadow:5px -3px 0 #fff,10px -7px 0 #fff}

.tb-boards{display:flex;align-items:center;gap:6px;flex:1 1 auto;min-width:0;overflow:hidden;height:100%}
.tb-tab{
  display:inline-flex;align-items:center;height:28px;padding:0 10px;border-radius:7px;
  font-size:12.5px;color:#4b5563;background:#f8fafc;border:1px solid transparent;flex:0 0 auto;
}
.tb-tab:hover{background:#f1f5f9}
.tb-tab.active{background:var(--brand-soft);color:var(--brand);border-color:#bfdbfe;font-weight:600}
.tb-none{font-size:12px;color:var(--muted)}
.tb-more,.tb-detail-wrap{position:relative;flex:0 0 auto}
.tb-more-btn,.tb-icon-btn{
  display:inline-flex;align-items:center;gap:4px;height:28px;padding:0 9px;
  border:1px solid var(--line);background:#fff;border-radius:7px;
  font-size:12px;color:#4b5563;cursor:pointer;font-family:inherit;
}
.tb-more-btn:hover,.tb-icon-btn:hover{background:#f9fafb;border-color:#cbd5e1}
.tb-i{display:inline-flex;align-items:center;justify-content:center;width:14px;height:14px;border:1px solid #94a3b8;border-radius:50%;font-size:10px;line-height:1;font-style:normal;color:#64748b}
.tb-menu,.tb-detail{
  display:none;position:absolute;top:calc(100% + 6px);z-index:60;
  background:var(--panel);border:1px solid var(--line);border-radius:10px;
  box-shadow:0 10px 30px rgba(15,23,42,.12);white-space:normal;
}
.tb-menu.open,.tb-detail.open{display:block}
.tb-menu{left:0;min-width:190px;max-height:60vh;overflow:auto;padding:6px}
.tb-menu a{display:block;padding:7px 10px;border-radius:6px;font-size:12.5px;color:#374151}
.tb-menu a:hover{background:#f3f4f6}
.tb-menu a.current{background:var(--brand-soft);color:var(--brand);font-weight:600}

.tb-updated{display:flex;align-items:center;gap:6px;flex:0 0 auto;font-size:11.5px;color:var(--muted)}
.tb-updated small{font-size:11px}
.tb-updated strong{font-size:12px;font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums}
.live-dot{width:6px;height:6px;border-radius:50%;background:#10b981;flex:0 0 6px;box-shadow:0 0 0 3px #d1fae5}

.tb-right{display:flex;align-items:center;gap:6px;flex:0 0 auto}
.tb-link{font-size:12px;color:var(--muted);padding:5px 7px;border-radius:6px}
.tb-link:hover{background:#f3f4f6;color:var(--ink)}
.tb-link.active{background:var(--brand-soft);color:var(--brand)}
.tb-user{font-size:12px;color:#374151;max-width:96px;overflow:hidden;text-overflow:ellipsis}
.tb-logout{color:#9ca3af}

.tb-detail{right:0;min-width:330px;max-width:min(430px,90vw);padding:10px 14px 12px}
.tb-detail-row{display:flex;gap:12px;justify-content:space-between;align-items:flex-start;font-size:12px;color:var(--muted);padding:4px 0;line-height:1.5}
.tb-detail-row>span:last-child{text-align:right;max-width:250px}
.tb-detail-row strong{color:var(--ink);font-weight:600}
.tb-detail .btn{margin-top:8px}

.main{padding:8px}
.page-admin .main,.page-plain .main{padding:22px 26px 40px}
.page-head{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:18px}
.page-head p{margin:4px 0 0;color:var(--muted);font-size:13px}
.update-box{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:10px 16px;min-width:210px}
.update-box small{display:block;color:var(--muted);font-size:11px}
.update-box strong{display:block;font-size:14px;font-variant-numeric:tabular-nums}

.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin-bottom:18px}
.card .hint,.hint{color:var(--muted);font-size:12px;margin:0 0 14px}
.grid-2{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:18px}
.grid-2 .card{margin-bottom:18px}
.mt{margin-top:22px}
.notice{background:var(--warn-soft);border:1px solid #fde68a;color:#78350f;border-radius:var(--radius);padding:12px 16px;font-size:12.5px;margin-bottom:18px}
.notice strong{margin-right:8px}

.tbl{width:100%;border-collapse:collapse;font-size:13px}
.tbl th{text-align:left;font-weight:500;color:var(--muted);font-size:12px;padding:9px 10px;border-bottom:1px solid var(--line);background:#fafafa}
.tbl td{padding:11px 10px;border-bottom:1px solid #f1f2f4;vertical-align:top}
.tbl tr:last-child td{border-bottom:0}
.mono{font-family:Consolas,Menlo,monospace;font-size:12px;white-space:nowrap}
.cell-sub{color:var(--muted);font-size:11.5px;margin-top:3px}
.bad{color:var(--bad)}
.tag{display:inline-block;font-size:11px;padding:2px 8px;border-radius:999px;margin-left:6px}
.tag-ok{background:var(--ok-soft);color:var(--ok)}
.tag-off{background:#f3f4f6;color:#9ca3af}
.tag-blue{background:var(--brand-soft);color:var(--brand)}

label{display:block;font-size:12px;color:#4b5563;margin:12px 0 5px}
input[type=text],input[type=password],input:not([type]){width:100%;padding:9px 11px;border:1px solid #d1d5db;border-radius:8px;font-size:13px;background:#fff;color:var(--ink);outline:none}
input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(37,99,235,.1)}
input:disabled{background:#f3f4f6;color:#9ca3af}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 16px;border-radius:8px;border:1px solid transparent;font-size:13px;cursor:pointer;font-family:inherit;white-space:nowrap}
.btn-primary{background:var(--brand);color:#fff;margin-top:16px}
.btn-primary:hover{background:#1d4ed8}
.btn-ghost{background:#fff;border-color:var(--line);color:#374151}
.btn-ghost:hover{background:#f9fafb}
.btn-sm{padding:5px 11px;font-size:12px;margin-top:0}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn-block{width:100%}
.check{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;color:#374151;margin:0;cursor:pointer}
.check input{width:15px;height:15px;accent-color:var(--brand);margin:0}

.user-row{border:1px solid var(--line);border-radius:10px;padding:14px 16px;margin-bottom:12px;background:#fcfcfd}
.user-row-head{display:flex;justify-content:space-between;align-items:center;gap:12px}
.perm-form{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:12px;padding-top:12px;border-top:1px dashed var(--line)}
.perm-boxes{display:flex;gap:16px;flex-wrap:wrap;flex:1}
.reset-form{display:flex;gap:8px;align-items:center;margin-top:10px}
.reset-form input{max-width:260px;margin:0}

.frame-wrap{background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.frame-wrap iframe{display:block;width:100%;height:calc(100vh - 68px);min-height:420px;border:0;background:#fff}
.path-code{display:inline-block;margin:12px 0 18px;padding:8px 12px;background:#f3f4f6;border-radius:8px;font-size:13px}
.empty-card{text-align:center;padding:56px 20px}
.empty-card p{color:var(--muted);font-size:13px;margin:8px 0 0}
.empty-card h2{font-size:17px;margin-top:14px}
.empty-icon{width:46px;height:46px;margin:0 auto;border-radius:12px;background:#eef2ff;border:2px dashed #c7d2fe}
.flashes{margin-bottom:10px}
.flash{background:var(--brand-soft);border:1px solid #bfdbfe;color:#1e40af;border-radius:9px;padding:8px 14px;font-size:12.5px;margin-bottom:8px}

.login-body{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--bg);padding:24px}
.login-card{width:100%;max-width:390px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:32px 30px}
.login-brand{display:flex;align-items:center;gap:10px;margin-bottom:26px}
.login-brand strong{font-size:15px}
.login-card h1{font-size:20px}
.login-sub{color:var(--muted);font-size:12.5px;margin:6px 0 22px}
.login-hint{margin-top:24px;padding-top:16px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:5px;font-size:11.5px;color:var(--muted)}
.login-hint strong{color:#374151;font-size:12px;margin-bottom:3px}
.login-foot{margin-top:18px;font-size:11px;color:#9ca3af}

@media (max-width:1100px){
  .tb-updated small{display:none}
  .tb-user{display:none}
}
@media (max-width:760px){
  .grid-2{grid-template-columns:1fr}
  .topbar{height:auto;min-height:42px;padding:5px 10px;flex-wrap:wrap;gap:5px;white-space:normal}
  .tb-boards{order:3;flex:1 1 100%;min-width:0;overflow:hidden;height:auto}
  .tb-right{margin-left:auto}
  .tb-updated{display:none}
  .tb-detail{right:0;min-width:280px}
  .page-admin .main,.page-plain .main{padding:16px 14px 30px}
  .frame-wrap iframe{height:calc(100vh - 112px);min-height:380px}
}