:root{
  --bg:#060910;
  --panel:rgba(14,21,36,.72);
  --panel-solid:#0e1524;
  --line:rgba(88,130,190,.18);
  --line-strong:rgba(88,160,220,.40);
  --txt:#c6d3e6;
  --txt-dim:#7c8ba3;
  --txt-hi:#eaf2ff;
  --cyan:#35d3ea;
  --blue:#4f8cff;
  --green:#3ddc97;
  --amber:#f5a524;
  --red:#ff5d6c;
  --radius:10px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  color:var(--txt);
  font-family:"Inter","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:14px;
  line-height:1.65;
  min-height:100vh;
  display:flex;
  flex-direction:column;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--cyan);text-decoration:none}
a:hover{color:#6ee7ff}
h1,h2,h3,h4{color:var(--txt-hi);font-weight:600;line-height:1.3}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em}

.bg-grid{
  position:fixed;inset:0;z-index:-2;pointer-events:none;
  background-image:
    linear-gradient(rgba(80,140,200,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(80,140,200,.055) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:radial-gradient(ellipse 85% 60% at 50% 0%,#000 25%,transparent 92%);
  mask-image:radial-gradient(ellipse 85% 60% at 50% 0%,#000 25%,transparent 92%);
}
.bg-glow{
  position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(620px 320px at 10% -6%,rgba(53,211,234,.10),transparent 70%),
    radial-gradient(720px 380px at 92% -2%,rgba(79,140,255,.10),transparent 70%);
}

.topbar{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  background:rgba(6,9,16,.78);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  max-width:1200px;margin:0 auto;
  display:flex;align-items:center;gap:18px;
  padding:0 20px;height:60px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:22px;height:22px;border-radius:6px;
  background:linear-gradient(135deg,var(--cyan),var(--blue));
  box-shadow:0 0 14px rgba(53,211,234,.5);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:6px;border-radius:2px;background:var(--bg);
}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-text strong{color:var(--txt-hi);font-size:15px;letter-spacing:.5px}
.brand-text small{color:var(--txt-dim);font-size:9px;letter-spacing:2.2px}

.nav{display:flex;gap:2px;margin-left:12px;flex:1}
.nav a{
  color:var(--txt-dim);padding:7px 13px;border-radius:8px;
  font-size:13.5px;transition:.18s;white-space:nowrap;
}
.nav a:hover{color:var(--txt-hi);background:rgba(88,140,200,.09)}
.nav a.on{color:var(--cyan);background:rgba(53,211,234,.10)}

.userbox{display:flex;align-items:center;gap:10px;flex-shrink:0}
.userlink{color:var(--txt);font-size:13px}
.userlink:hover{color:var(--cyan)}

.nav-toggle{
  display:none;width:36px;height:32px;border:1px solid var(--line);
  background:transparent;border-radius:8px;cursor:pointer;
  flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.nav-toggle span{display:block;width:16px;height:1.5px;background:var(--txt);border-radius:2px}

.page{
  flex:1;width:100%;max-width:1200px;margin:0 auto;
  padding:26px 20px 56px;
}

.card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  backdrop-filter:blur(8px);
  overflow:hidden;
  margin-bottom:20px;
}
.card-head{
  padding:14px 18px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
}
.card-head h3{font-size:14.5px;letter-spacing:.4px}
.card-head .sub{color:var(--txt-dim);font-size:12px}
.card-body{padding:18px}

.alert{
  padding:11px 15px;border-radius:8px;margin-bottom:16px;
  font-size:13.5px;border:1px solid transparent;
}
.alert-success{background:rgba(61,220,151,.10);border-color:rgba(61,220,151,.32);color:#8ff0c4}
.alert-error  {background:rgba(255,93,108,.10);border-color:rgba(255,93,108,.32);color:#ffa3ac}
.alert-warn   {background:rgba(245,165,36,.10);border-color:rgba(245,165,36,.32);color:#ffd18a}
.alert-info   {background:rgba(79,140,255,.10);border-color:rgba(79,140,255,.30);color:#a8c6ff}

.grid{display:grid;gap:14px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

.stat{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px 18px;position:relative;overflow:hidden;
}
.stat::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--cyan),transparent);
}
.stat .k{color:var(--txt-dim);font-size:12px;letter-spacing:.6px}
.stat .v{color:var(--txt-hi);font-size:26px;font-weight:600;margin-top:4px;
  font-variant-numeric:tabular-nums;letter-spacing:.5px}

.field{margin-bottom:16px}
.field label{display:block;font-size:12.5px;color:var(--txt-dim);margin-bottom:6px;letter-spacing:.4px}
.field .hint{font-size:11.5px;color:var(--txt-dim);margin-top:6px}

input[type=text],input[type=email],input[type=password],input[type=number],select,textarea{
  width:100%;padding:10px 13px;
  background:rgba(6,10,18,.85);
  border:1px solid var(--line);
  border-radius:8px;color:var(--txt-hi);
  font-size:13.5px;font-family:inherit;
  transition:.16s;outline:none;
}
input:focus,select:focus,textarea:focus{
  border-color:var(--line-strong);
  box-shadow:0 0 0 3px rgba(53,211,234,.10);
}
textarea{min-height:140px;resize:vertical;line-height:1.7}
::placeholder{color:#4d5b70}

.form-row{display:flex;gap:12px;flex-wrap:wrap}
.form-row .field{flex:1;min-width:180px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:9px 18px;border-radius:8px;border:1px solid transparent;
  font-size:13.5px;font-family:inherit;cursor:pointer;
  transition:.16s;white-space:nowrap;text-decoration:none;
}
.btn-primary{
  background:linear-gradient(135deg,rgba(53,211,234,.92),rgba(79,140,255,.92));
  color:#03121a;font-weight:600;
  box-shadow:0 0 18px rgba(53,211,234,.22);
}
.btn-primary:hover{filter:brightness(1.1);color:#03121a}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--txt)}
.btn-ghost:hover{border-color:var(--line-strong);color:var(--txt-hi);background:rgba(88,140,200,.07)}
.btn-danger{background:rgba(255,93,108,.12);border-color:rgba(255,93,108,.35);color:#ffa3ac}
.btn-danger:hover{background:rgba(255,93,108,.2)}
.btn-sm{padding:6px 12px;font-size:12.5px}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn-row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}

.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;font-size:13.2px;min-width:640px}
th{
  text-align:left;padding:11px 14px;color:var(--txt-dim);
  font-weight:500;font-size:12px;letter-spacing:.7px;
  border-bottom:1px solid var(--line);white-space:nowrap;
  background:rgba(10,16,28,.5);
}
td{padding:12px 14px;border-bottom:1px solid rgba(88,130,190,.10);vertical-align:middle}
tbody tr:hover{background:rgba(88,140,200,.05)}
td.mono{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12.5px;color:var(--txt-hi)}

.badge{
  display:inline-block;padding:2px 9px;border-radius:20px;
  font-size:11.5px;letter-spacing:.4px;border:1px solid transparent;white-space:nowrap;
}
.badge-diamond{background:rgba(53,211,234,.12);border-color:rgba(53,211,234,.4);color:#7fe6f7}
.badge-normal {background:rgba(124,139,163,.12);border-color:rgba(124,139,163,.3);color:#9aa8bd}
.badge-ok     {background:rgba(61,220,151,.12);border-color:rgba(61,220,151,.35);color:#8ff0c4}
.badge-warn   {background:rgba(245,165,36,.12);border-color:rgba(245,165,36,.35);color:#ffd18a}
.badge-danger {background:rgba(255,93,108,.12);border-color:rgba(255,93,108,.35);color:#ffa3ac}
.badge-blue   {background:rgba(79,140,255,.12);border-color:rgba(79,140,255,.35);color:#a8c6ff}

.pager{display:flex;gap:6px;justify-content:center;padding:16px 0 4px;flex-wrap:wrap}
.pager a,.pager span{
  min-width:34px;height:34px;padding:0 10px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:8px;
  color:var(--txt-dim);font-size:13px;
}
.pager a:hover{border-color:var(--line-strong);color:var(--txt-hi)}
.pager .on{background:rgba(53,211,234,.12);border-color:rgba(53,211,234,.4);color:var(--cyan)}

.hero{padding:64px 0 40px;text-align:center}
.hero h1{font-size:clamp(26px,5vw,42px);letter-spacing:1px;margin-bottom:16px}
.hero h1 span{
  background:linear-gradient(120deg,var(--cyan),var(--blue));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p{color:var(--txt-dim);max-width:640px;margin:0 auto 26px;font-size:15px}

.notice{
  border:1px solid rgba(245,165,36,.28);background:rgba(245,165,36,.06);
  border-radius:var(--radius);padding:14px 18px;color:#ffd18a;
  font-size:13px;margin:22px 0;
}
.notice b{color:#ffb84d}

.feature{padding:20px}
.feature .ico{
  width:34px;height:34px;border-radius:9px;margin-bottom:12px;
  background:rgba(53,211,234,.10);border:1px solid rgba(53,211,234,.28);
  display:flex;align-items:center;justify-content:center;
  color:var(--cyan);font-size:15px;font-weight:600;
}
.feature h4{font-size:14.5px;margin-bottom:6px}
.feature p{color:var(--txt-dim);font-size:13px}

.auth-wrap{max-width:420px;margin:48px auto}
.auth-wrap h2{text-align:center;margin-bottom:6px;font-size:20px}
.auth-wrap .sub{text-align:center;color:var(--txt-dim);font-size:13px;margin-bottom:24px}

.empty{text-align:center;padding:48px 20px;color:var(--txt-dim)}
.empty .sym{font-size:32px;opacity:.35;margin-bottom:10px}

.counter{font-size:12px;color:var(--txt-dim);font-variant-numeric:tabular-nums}
.counter.over{color:var(--red)}

.footer{border-top:1px solid var(--line);background:rgba(6,9,16,.6)}
.footer-inner{
  max-width:1200px;margin:0 auto;padding:18px 20px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:12px;color:var(--txt-dim);
}
.demo-tag{color:rgba(245,165,36,.75)}

@media (max-width:920px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
}

@media (max-width:768px){
  .topbar-inner{flex-wrap:wrap;height:auto;padding:10px 16px;gap:10px}
  .nav-toggle{display:flex;order:2;margin-left:auto}
  .userbox{order:3}
  .nav{
    order:4;display:none;width:100%;flex-direction:column;
    margin:0;padding-top:8px;border-top:1px solid var(--line);
  }
  body.nav-open .nav{display:flex}
  .nav a{padding:10px 12px}
  .page{padding:18px 14px 44px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .hero{padding:40px 0 26px}
  .card-body{padding:14px}
  .stat .v{font-size:22px}
  .userlink{max-width:88px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
}

@media (max-width:420px){
  .brand-text small{display:none}
  .badge{font-size:11px;padding:2px 7px}
}