:root {
    --bg-1: #0b1020;
    --bg-2: #141a33;
    --accent: #6c8cff;
    --accent-2: #9d6cff;
    --accent-3: #4dd6c7;
    --text: #eef1fa;
    --muted: #8b94b8;
    --card: rgba(255,255,255,.05);
    --card-border: rgba(255,255,255,.09);
    --danger: #ff6b6b;
    --warn: #ffb454;
    --ok: #5ee6a0;
  }
  * { margin:0; padding:0; box-sizing:border-box; }
  body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    min-height: 100vh;
    color: var(--text);
    background: radial-gradient(1200px 800px at 15% -10%, #1c2450 0%, transparent 60%),
                radial-gradient(1000px 700px at 110% 20%, #201a45 0%, transparent 55%),
                radial-gradient(900px 700px at 50% 120%, #0e2b34 0%, transparent 60%),
                linear-gradient(160deg, var(--bg-1), var(--bg-2));
    background-attachment: fixed;
    overflow-x: hidden;
  }
  .stars { position: fixed; inset:0; pointer-events:none; z-index:0; }
  .star { position:absolute; border-radius:50%; background:#fff; opacity:.5; animation: twinkle 4s infinite ease-in-out; }
  @keyframes twinkle { 0%,100% {opacity:.15;} 50% {opacity:.7;} }

  .wrap { position:relative; z-index:1; max-width: 720px; margin: 0 auto; padding: 56px 20px 70px; }

  header { text-align:center; margin-bottom: 36px; animation: rise .6s ease both; }
  @keyframes rise { from {opacity:0; transform:translateY(14px);} to {opacity:1; transform:none;} }

  .logo {
    width:64px; height:64px; margin:0 auto 18px; border-radius:20px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    display:flex; align-items:center; justify-content:center; font-size:30px;
    box-shadow: 0 10px 40px rgba(108,140,255,.35);
  }
  header h1 { font-size:28px; letter-spacing:.5px; background:linear-gradient(90deg,#fff, #b9c8ff); -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent; }
  header p { color:var(--muted); font-size:14px; margin-top:8px; }

  .card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 26px;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 12px 40px rgba(0,0,0,.25);
    margin-bottom: 22px;
    animation: rise .6s ease both;
  }
  .card:nth-child(2) { animation-delay:.08s; }
  .card:nth-child(3) { animation-delay:.16s; }
  .card:nth-child(4) { animation-delay:.24s; }

  .input-row { display:flex; gap:10px; }
  .input-wrap { flex:1; position:relative; }
  .input-wrap .lock {
    position:absolute; left:16px; top:50%; transform:translateY(-50%);
    font-size:15px; opacity:.55; pointer-events:none;
  }
  input[type=password] {
    width:100%; padding:14px 16px 14px 42px;
    background: rgba(255,255,255,.06);
    border: 1.5px solid rgba(255,255,255,.12);
    border-radius: 14px; color: var(--text); font-size:14px; font-family:ui-monospace,monospace;
    outline:none; transition:.2s;
  }
  input[type=password]:focus { border-color: var(--accent); background: rgba(108,140,255,.08); box-shadow: 0 0 0 4px rgba(108,140,255,.15); }

  .btn {
    padding: 14px 22px; border:none; border-radius:14px; cursor:pointer;
    font-size:14px; font-weight:600; color:#fff; font-family:inherit;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    transition:.2s; white-space:nowrap;
  }
  .btn:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(108,140,255,.35); }
  .btn:disabled { opacity:.6; cursor:wait; transform:none; }
  .btn-ghost {
    background: rgba(255,255,255,.07); color:var(--muted);
    border: 1px solid rgba(255,255,255,.1);
  }
  .btn-ghost:hover { color:var(--text); box-shadow:none; }

  .remember { display:flex; align-items:center; gap:8px; margin-top:14px; font-size:13px; color:var(--muted); cursor:pointer; user-select:none; }
  .remember input { accent-color: var(--accent); width:15px; height:15px; }
  #error { display:none; margin-top:14px; padding:12px 16px; border-radius:12px; background: rgba(255,107,107,.12); border:1px solid rgba(255,107,107,.3); color:var(--danger); font-size:13.5px; }

  /* ---- 结果区 ---- */
  #result { display:none; }
  .key-head { display:flex; align-items:center; gap:10px; flex-wrap:wrap; }
  .key-head h2 { font-size:19px; }
  .key-name { font-family:ui-monospace,monospace; font-size:15px; color:var(--accent-3); }
  .badge { font-size:11.5px; padding:3px 10px; border-radius:999px; background: rgba(94,230,160,.14); color:var(--ok); border:1px solid rgba(94,230,160,.3); }
  .sub { margin-top:8px; font-size:12.5px; color:var(--muted); }

  .grid { display:grid; grid-template-columns: 1fr 1fr; gap:16px; margin-top: 0; }
  @media (max-width: 560px) { .grid { grid-template-columns: 1fr; } }

  .stat {
    background: rgba(255,255,255,.04);
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 16px; padding: 18px;
    transition:.2s;
  }
  .stat:hover { transform: translateY(-2px); border-color: rgba(108,140,255,.3); }
  .stat .label { color:var(--muted); font-size:12px; display:flex; align-items:center; gap:6px; margin-bottom:10px; }
  .stat .value { font-size:26px; font-weight:700; letter-spacing:.3px; }
  .stat .value small { font-size:13px; color:var(--muted); font-weight:400; margin-left:3px; }
  .stat.quota { grid-column: span 2; display:flex; align-items:center; gap:22px; }
  @media (max-width: 560px) { .stat.quota { flex-direction:column; text-align:center; } }

  /* 环形进度 */
  .ring { position:relative; width:108px; height:108px; flex-shrink:0; }
  .ring svg { transform: rotate(-90deg); }
  .ring .track { stroke: rgba(255,255,255,.08); }
  .ring .fill { stroke: url(#grad); stroke-linecap: round; transition: stroke-dashoffset 1s ease; }
  .ring .num { position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:center; }
  .ring .num b { font-size:20px; }
  .ring .num span { font-size:10.5px; color:var(--muted); }
  .quota-info { flex:1; min-width:0; }
  .quota-info .big { font-size:15px; }
  .quota-info .big b { font-size:22px; color:var(--accent-3); }

  .chips { display:flex; flex-wrap:wrap; gap:6px; margin-top:4px; }
  .chip { font-size:11.5px; background: rgba(108,140,255,.1); border:1px solid rgba(108,140,255,.25); color:#b9c8ff; border-radius:999px; padding:3px 10px; }
  .chip:nth-child(3n) { background: rgba(157,108,255,.1); border-color: rgba(157,108,255,.25); color:#cdb9ff; }
  .chip:nth-child(3n+1) { background: rgba(77,214,199,.1); border-color: rgba(77,214,199,.25); color:#a3e8df; }

  .code {
    background: rgba(0,0,0,.3); border:1px solid rgba(255,255,255,.08);
    border-radius: 12px; padding: 16px; font-family:ui-monospace,monospace;
    font-size:13px; line-height:1.9; color:var(--text); margin-top:12px;
  }
  .code .k { color: var(--accent-3); }
  .code .s { color: #e8b37a; }

  .foot { text-align:center; color:var(--muted); font-size:12px; margin-top:34px; line-height:1.9; opacity:.75; }

  .skeleton { position:relative; overflow:hidden; }
  .skeleton::after {
    content:""; position:absolute; inset:0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.06), transparent);
    animation: shimmer 1.2s infinite;
  }
  @keyframes shimmer { from {transform:translateX(-100%);} to {transform:translateX(100%);} }

.kami-link {
  display:inline-block; margin-top:16px; padding:10px 22px; border-radius:999px;
  color:#fff; text-decoration:none; font-size:13.5px; font-weight:600;
  background: linear-gradient(135deg, var(--accent-3), var(--accent));
  box-shadow: 0 6px 20px rgba(77,214,199,.25); transition:.2s;
}
.kami-link:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(77,214,199,.4); }