:root{
  --bg:#0a0e15; --bg2:#0f1520; --panel:#121a27; --panel2:#16202f;
  --line:#22304366; --line2:#2b3b52;
  --text:#e6edf7; --muted:#8b9ab1; --accent:#4f8cff; --accent2:#7aa5ff;
  --green:#35d29a; --amber:#f0b429; --red:#ff6b6b; --gray:#7b8aa0;
  --radius:14px; --shadow:0 18px 50px rgba(0,0,0,.45);
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; background:radial-gradient(1200px 600px at 15% -10%,#16233a 0%,transparent 60%),
  radial-gradient(900px 500px at 90% 0%,#1b1730 0%,transparent 55%),var(--bg);
  color:var(--text); font:14px/1.6 "PingFang SC","Microsoft YaHei",-apple-system,"Segoe UI",Roboto,sans-serif;
  -webkit-font-smoothing:antialiased;
}
.hidden{display:none !important}
.muted{color:var(--muted)}
.small{font-size:12.5px}
.tiny{font-size:11.5px}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:#0b1220;border:1px solid var(--line);
  padding:1px 6px;border-radius:6px;color:#a9c4ff;font-size:12.5px}
.spacer{flex:1}

/* ---------------- 登录 ---------------- */
.login-view{min-height:100%;display:flex;align-items:center;justify-content:center;padding:24px}
.login-card{
  width:100%;max-width:390px;background:linear-gradient(180deg,#131c2b,#0f1622);
  border:1px solid var(--line2);border-radius:20px;padding:34px 30px;box-shadow:var(--shadow);
  animation:pop .35s ease;
}
@keyframes pop{from{transform:translateY(10px) scale(.98);opacity:0}to{transform:none;opacity:1}}
.logo-mark{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;font-weight:800;letter-spacing:1px;
  background:linear-gradient(135deg,var(--accent),#8b5cf6);color:#fff;box-shadow:0 8px 24px #4f8cff55;
}
.login-card h1{font-size:21px;margin:16px 0 4px}
.login-card p{margin:0 0 22px}
.field{display:block;margin-bottom:14px}
.field>span{display:block;font-size:12.5px;color:var(--muted);margin-bottom:6px}
.input,.field input{
  width:100%;background:#0c1320;border:1px solid var(--line2);color:var(--text);
  border-radius:10px;padding:11px 12px;font-size:14px;outline:none;transition:.15s;
}
.field input:focus,.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #4f8cff26}
.btn{
  border:1px solid transparent;border-radius:10px;padding:9px 14px;font-size:13.5px;cursor:pointer;
  background:#1b2635;color:var(--text);transition:.15s;white-space:nowrap;font-family:inherit;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:none}
.btn.primary{background:linear-gradient(135deg,var(--accent),#7b5cff);color:#fff;box-shadow:0 8px 20px #4f8cff33;font-weight:600}
.btn.primary:hover{filter:brightness(1.08)}
.btn.ghost{background:#131c2a;border-color:var(--line2);color:#c9d6e8}
.btn.ghost:hover{border-color:var(--accent);color:#fff}
.btn.danger{background:#3a1620;border-color:#5c2230;color:#ff9a9a}
.btn.block{width:100%;padding:11px}
.btn.sm{padding:5px 10px;font-size:12px;border-radius:8px}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.form-err{color:var(--red);font-size:12.5px;min-height:18px;margin:10px 0 0}

/* ---------------- 顶栏 ---------------- */
.app-view{min-height:100%}
.topbar{
  position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:22px;
  padding:12px 22px;background:#0b111ccc;backdrop-filter:blur(12px);border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:9px;font-weight:700;letter-spacing:.3px}
.brand .dot{width:9px;height:9px;border-radius:50%;background:var(--green);box-shadow:0 0 12px var(--green)}
.brand small{color:var(--muted);font-weight:400;font-size:11px}
.tabs{display:flex;gap:4px;background:#0d1522;padding:4px;border-radius:11px;border:1px solid var(--line)}
.tab{border:0;background:transparent;color:var(--muted);padding:7px 15px;border-radius:8px;cursor:pointer;font-size:13.5px;font-family:inherit}
.tab.active{background:#1b2a40;color:#fff;box-shadow:inset 0 0 0 1px #2c4260}
.top-right{margin-left:auto;display:flex;align-items:center;gap:12px}

main{max-width:1280px;margin:0 auto;padding:22px}

/* ---------------- 统计 ---------------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-bottom:16px}
.stat{
  background:linear-gradient(180deg,#121b29,#0e1521);border:1px solid var(--line);
  border-radius:var(--radius);padding:14px 16px;position:relative;overflow:hidden;
}
.stat::after{content:"";position:absolute;inset:0 auto 0 0;width:3px;background:var(--accent);opacity:.7}
.stat.s-unused::after{background:var(--gray)}
.stat.s-active::after{background:var(--green)}
.stat.s-expired::after{background:var(--amber)}
.stat.s-disabled::after{background:var(--red)}
.stat .k{font-size:12px;color:var(--muted)}
.stat .v{font-size:26px;font-weight:700;line-height:1.25;font-variant-numeric:tabular-nums}

/* ---------------- 面板/表格 ---------------- */
.panel{background:linear-gradient(180deg,#111a28,#0e1521);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-bottom:16px}
.toolbar{display:flex;gap:10px;align-items:center;padding:14px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.toolbar .input{max-width:260px}
.toolbar .grow{flex:1;max-width:none;min-width:180px}
select.input{appearance:none;padding-right:28px;
  background-image:linear-gradient(45deg,transparent 50%,#8b9ab1 50%),linear-gradient(135deg,#8b9ab1 50%,transparent 50%);
  background-position:calc(100% - 16px) 50%,calc(100% - 11px) 50%;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.table-wrap{overflow:auto}
table.grid{width:100%;border-collapse:collapse;min-width:900px}
table.grid th{
  text-align:left;font-weight:600;font-size:12px;color:var(--muted);padding:11px 14px;
  background:#0d1522;border-bottom:1px solid var(--line);white-space:nowrap;position:sticky;top:0;
}
table.grid td{padding:11px 14px;border-bottom:1px solid #1a2534;vertical-align:middle;font-size:13px}
table.grid tbody tr:hover{background:#141e2d}
td.empty{text-align:center;color:var(--muted);padding:34px 0}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.3px}
.key-cell{display:flex;align-items:center;gap:8px}
.key-text{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12.5px;color:#b9cdf0;white-space:nowrap}
.badge{display:inline-flex;align-items:center;gap:5px;font-size:11.5px;padding:2px 9px;border-radius:999px;border:1px solid}
.badge::before{content:"";width:5px;height:5px;border-radius:50%;background:currentColor;box-shadow:0 0 8px currentColor}
.b-unused{color:#9fb0c9;border-color:#33445c;background:#1a2536}
.b-active{color:#43dfa6;border-color:#1f5e48;background:#10251e}
.b-expired{color:#f3be45;border-color:#5c4620;background:#241d0f}
.b-disabled{color:#ff8484;border-color:#5c2730;background:#26131a}
.actions{display:flex;gap:6px;flex-wrap:wrap}
.pager{display:flex;align-items:center;gap:10px;padding:12px 14px}
.hw{font-family:ui-monospace,monospace;font-size:11.5px;color:#9db1cd;max-width:170px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:inline-block;vertical-align:middle}

.form-panel{padding:20px}
.form-panel h2{font-size:15px;margin:0 0 4px}
.stack{display:flex;flex-direction:column;gap:12px;margin-top:14px;max-width:360px}
.code-line{display:flex;align-items:center;gap:10px;margin:12px 0;flex-wrap:wrap}
.list{margin:8px 0 0;padding-left:18px}
.list li{margin:4px 0}

/* ---------------- 弹窗 ---------------- */
.modal-mask{position:fixed;inset:0;background:#05080ecc;backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;padding:20px;z-index:60;animation:fade .18s ease}
@keyframes fade{from{opacity:0}to{opacity:1}}
.modal{width:100%;max-width:520px;background:linear-gradient(180deg,#141d2b,#0f1622);border:1px solid var(--line2);
  border-radius:18px;box-shadow:var(--shadow);padding:22px;animation:pop .22s ease;max-height:88vh;overflow:auto}
.modal h3{margin:0 0 4px;font-size:16px}
.modal .head{margin-bottom:16px}
.modal .foot{display:flex;gap:10px;justify-content:flex-end;margin-top:18px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.key-out{width:100%;height:190px;background:#0a111c;border:1px solid var(--line2);border-radius:10px;color:#bcd3ff;
  font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;padding:12px;resize:vertical;outline:none}
.tip{background:#101b2a;border:1px solid #22344c;border-radius:10px;padding:10px 12px;font-size:12.5px;color:#9fb3cd;margin-top:10px}

/* ---------------- Toast ---------------- */
.toast-root{position:fixed;right:18px;bottom:18px;display:flex;flex-direction:column;gap:8px;z-index:90}
.toast{background:#16212f;border:1px solid var(--line2);border-left:3px solid var(--accent);color:var(--text);
  padding:10px 14px;border-radius:10px;box-shadow:0 12px 30px #0008;animation:slide .2s ease;font-size:13px;max-width:340px}
.toast.err{border-left-color:var(--red)}
.toast.ok{border-left-color:var(--green)}
@keyframes slide{from{transform:translateX(20px);opacity:0}to{transform:none;opacity:1}}

@media(max-width:720px){
  .topbar{flex-wrap:wrap;gap:10px;padding:10px 14px}
  .tabs{order:3;width:100%;justify-content:space-between}
  main{padding:14px}
  .login-card{padding:26px 20px}
}