:root {
  --bg: #0a0e1a;
  --bg2: #0f1424;
  --card: rgba(15, 20, 36, 0.92);
  --line: rgba(255,255,255,0.1);
  --text: #e8eef7;
  --muted: #8b9bb4;
  --accent: #00d4ff;
  --accent2: #8b5cf6;
  --ok: #10b981;
  --warn: #f59e0b;
  --bad: #ef4444;
  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0; min-height: 100vh; color: var(--text); font-family: var(--font);
  background:
    radial-gradient(circle at 15% 20%, rgba(0,212,255,.12), transparent 40%),
    radial-gradient(circle at 85% 10%, rgba(139,92,246,.12), transparent 35%),
    linear-gradient(160deg, #070b14, #0f1424 45%, #0a0e1a);
}
a { color: var(--accent); text-decoration: none; }
.wrap { max-width: 1100px; margin: 0 auto; padding: 40px 20px 80px; }
.nav {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 0 28px; border-bottom: 1px solid var(--line); margin-bottom: 36px;
}
.brand { font-weight: 800; font-size: 1.25rem; letter-spacing: .04em;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; color: transparent; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); margin: 0 0 12px; line-height: 1.15; }
.hero p { color: var(--muted); font-size: 1.05rem; max-width: 560px; line-height: 1.7; }
.row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; border: none; cursor: pointer;
  padding: 11px 18px; border-radius: 10px; font-weight: 700; color: #041018; background: var(--accent);
}
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }
.btn.danger { background: var(--bad); color: #fff; }
.btn.ok { background: var(--ok); color: #041018; }
.btn.warn { background: var(--warn); color: #041018; }
.btn.sm { padding: 6px 10px; font-size: 12px; border-radius: 8px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px; margin-bottom: 16px;
}
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.grid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
@media (max-width: 900px) { .grid3, .grid4 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .grid3, .grid4 { grid-template-columns: 1fr; } }
.stat { padding: 16px; border-radius: 12px; border: 1px solid var(--line); background: rgba(255,255,255,.03); }
.stat .n { font-size: 1.6rem; font-weight: 800; }
.stat .l { color: var(--muted); font-size: 13px; margin-top: 4px; }
label { display:block; color: var(--muted); font-size: 13px; margin: 0 0 6px; }
input, select, textarea {
  width: 100%; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--line);
  background: #0b1018; color: var(--text); margin-bottom: 12px;
}
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { border-bottom: 1px solid var(--line); padding: 8px 6px; text-align: left; vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
.badge { display:inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; border: 1px solid var(--line); }
.badge.pending { color: var(--warn); border-color: rgba(245,158,11,.4); }
.badge.active { color: var(--ok); border-color: rgba(16,185,129,.4); }
.badge.trial { color: var(--accent); border-color: rgba(0,212,255,.4); }
.badge.banned, .badge.expired { color: var(--bad); border-color: rgba(239,68,68,.4); }
.layout { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.side { background: rgba(15,20,36,.95); border-right: 1px solid var(--line); padding: 20px 14px; }
.side a {
  display:block; padding: 10px 12px; border-radius: 8px; color: var(--text); margin-bottom: 6px;
}
.side a.active, .side a:hover { background: rgba(0,212,255,.12); color: var(--accent); }
.main { padding: 24px; }
.tabs { display:none; }
.tabs.active { display:block; }
.out { background:#070b12; border:1px solid var(--line); border-radius:10px; padding:12px; white-space:pre-wrap; min-height:60px; }
.muted { color: var(--muted); }
.feature {
  padding: 18px; border-radius: 14px; border: 1px solid var(--line); background: rgba(255,255,255,.03);
}
.feature h3 { margin: 0 0 8px; }
.feature p { margin: 0; color: var(--muted); line-height: 1.6; font-size: 14px; }