:root{
  --bg:#f6f3ea;
  --paper:#fffdf7;
  --ink:#1e2a22;
  --muted:#6d7a70;
  --green:#1f6b4a;
  --green-2:#2e8b62;
  --green-soft:#e5f1ea;
  --gold:#b9892f;
  --line:#e3ded0;
  --danger:#b23b3b;
  --shadow:0 10px 30px rgba(40,55,45,.08);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:
    radial-gradient(1100px 500px at 8% -10%, #eaf3ec 0%, rgba(234,243,236,0) 60%),
    radial-gradient(900px 500px at 100% 0%, #f3ecdc 0%, rgba(243,236,220,0) 55%),
    var(--bg);
  color:var(--ink);
  font-family:"Microsoft YaHei UI","PingFang SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  line-height:1.55;
  min-height:100vh;
}
button,input,select,textarea{font:inherit;color:inherit}
a{color:var(--green)}
[hidden]{display:none !important}
.wrap{width:min(1120px,calc(100% - 40px));margin:0 auto}
.mono{font-family:"Cascadia Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace}

.site-header{
  background:rgba(255,253,247,.86);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(8px);
  position:sticky;top:0;z-index:20;
}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.logo{
  width:44px;height:44px;border-radius:14px;flex:none;
  background:linear-gradient(145deg,var(--green),#2e8b62);
  color:#fff;display:grid;place-items:center;font-size:21px;font-weight:700;
  box-shadow:0 6px 16px rgba(31,107,74,.25);
}
.brand h1{font-size:19px;margin:0;letter-spacing:.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand p{margin:1px 0 0;color:var(--muted);font-size:12px}
.tabs{display:flex;gap:6px;background:#f0ece1;padding:4px;border-radius:12px;flex:none}
.tab{
  border:0;background:transparent;padding:8px 14px;border-radius:9px;
  cursor:pointer;color:var(--muted);font-size:14px;white-space:nowrap;
}
.tab:hover{color:var(--ink)}
.tab.active{background:var(--paper);color:var(--green);font-weight:600;box-shadow:0 2px 8px rgba(40,55,45,.08)}

main{padding:26px 0 40px;min-height:60vh}
.notice{
  background:linear-gradient(135deg,#fff6df,#fdf1dc);
  border:1px solid #ecd9ac;border-radius:14px;padding:12px 16px;
  color:#6b4e1b;font-size:14px;margin-bottom:18px;
}
.toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:16px}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{
  border:1px solid var(--line);background:var(--paper);border-radius:999px;
  padding:7px 14px;cursor:pointer;font-size:13px;color:var(--muted);
}
.chip:hover{border-color:#c9d6ca}
.chip.active{background:var(--green);border-color:var(--green);color:#fff;font-weight:600}
.chip .n{opacity:.7;font-size:12px;margin-left:3px}
.meta{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12px}
.btn{
  border:1px solid var(--line);background:var(--paper);border-radius:10px;
  padding:8px 14px;cursor:pointer;font-size:13px;
}
.btn:hover{border-color:#c9d6ca;background:#fff}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn.primary{background:var(--green);border-color:var(--green);color:#fff;font-weight:600}
.btn.primary:hover{background:#195a3e}
.btn.danger{color:var(--danger);border-color:#e6c5c5}
.btn.danger:hover{background:#fbefef}
.btn.small{padding:5px 9px;font-size:12px;border-radius:8px}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px}
.card{
  text-align:left;border:1px solid var(--line);background:var(--paper);
  border-radius:16px;padding:16px 16px 13px;cursor:pointer;
  box-shadow:0 2px 0 rgba(40,55,45,.02);transition:transform .12s ease,box-shadow .12s ease,border-color .12s ease;
  position:relative;overflow:hidden;
}
.card::after{
  content:"";position:absolute;inset:0;border-radius:16px;pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(31,107,74,0);
  transition:box-shadow .12s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:#cfdad0}
.card:hover::after{box-shadow:inset 0 0 0 1px rgba(31,107,74,.18)}
.card .room{
  font-family:"Cascadia Mono",Consolas,monospace;
  font-size:30px;font-weight:700;letter-spacing:1.5px;color:var(--ink);
  font-variant-numeric:tabular-nums;line-height:1.15;
}
.card .row{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:10px}
.badge{
  display:inline-flex;align-items:center;gap:5px;border-radius:999px;
  background:var(--green-soft);color:var(--green);font-size:12px;
  padding:3px 10px;font-weight:600;
}
.price{color:var(--gold);font-size:12px;font-weight:700}
.dot{width:6px;height:6px;border-radius:50%;background:var(--green-2);display:inline-block;box-shadow:0 0 0 3px rgba(46,139,98,.14)}
.empty{
  border:1px dashed #d5cfc0;border-radius:16px;padding:56px 20px;text-align:center;
  color:var(--muted);background:rgba(255,253,247,.5);
}
.empty b{display:block;color:var(--ink);margin-bottom:6px;font-size:16px}

.panel{
  background:var(--paper);border:1px solid var(--line);border-radius:16px;
  padding:22px;box-shadow:var(--shadow);
}
.panel h2{margin:0 0 6px;font-size:18px}
.panel .sub{color:var(--muted);font-size:13px;margin:0 0 18px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
.input{
  width:100%;border:1px solid var(--line);border-radius:10px;background:#fff;
  padding:11px 13px;outline:none;font-size:15px;
}
.input:focus{border-color:var(--green-2);box-shadow:0 0 0 3px rgba(46,139,98,.12)}
.input.mono{letter-spacing:1px;text-transform:uppercase}
.hint{color:var(--muted);font-size:12px;margin-top:6px}
.error{color:var(--danger);font-size:13px;min-height:20px;margin-top:8px}
.lookup-form{display:flex;gap:10px;align-items:flex-end;flex-wrap:wrap}
.lookup-form .field{flex:1 1 320px;margin:0}
.lookup-result{margin-top:18px}

.result-room{
  font-family:"Cascadia Mono",Consolas,monospace;font-size:40px;font-weight:700;
  letter-spacing:2px;color:var(--green);font-variant-numeric:tabular-nums;
}
.result-code{
  font-family:"Cascadia Mono",Consolas,monospace;font-size:30px;font-weight:700;
  letter-spacing:4px;color:var(--ink);background:#f4f0e4;border-radius:12px;
  padding:8px 16px;display:inline-block;margin-top:4px;
}
.copy-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:8px}
.howto{
  margin-top:18px;border-top:1px dashed var(--line);padding-top:14px;
  color:var(--muted);font-size:13px;white-space:pre-wrap;
}
.kv{display:flex;gap:10px;font-size:13px;color:var(--muted);margin-top:6px;flex-wrap:wrap}
.kv b{color:var(--ink);font-weight:600}

.site-footer{border-top:1px solid var(--line);padding:20px 0;color:var(--muted);font-size:12px}
.site-footer .wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

.modal{
  position:fixed;inset:0;z-index:50;display:flex;align-items:center;justify-content:center;
  padding:20px;background:rgba(24,32,27,.42);backdrop-filter:blur(3px);
}
.modal-card{
  width:min(520px,100%);max-height:90vh;overflow:auto;background:var(--paper);
  border-radius:20px;padding:24px;box-shadow:0 30px 80px rgba(20,30,24,.3);
  position:relative;
}
.modal-close{
  position:absolute;top:12px;right:12px;border:0;background:transparent;
  font-size:22px;line-height:1;color:var(--muted);cursor:pointer;padding:6px 9px;border-radius:8px;
}
.modal-close:hover{background:#f0ece1;color:var(--ink)}
.modal h2{margin:0 0 4px;font-size:18px}
.modal .room-big{
  font-family:"Cascadia Mono",Consolas,monospace;font-size:36px;font-weight:700;
  letter-spacing:2px;color:var(--green);font-variant-numeric:tabular-nums;margin:6px 0 2px;
}
.modal .row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:16px}
.modal .actions{display:flex;gap:10px;justify-content:flex-end;margin-top:6px}

.toast{
  position:fixed;left:50%;bottom:26px;transform:translateX(-50%);
  background:#22332a;color:#fff;padding:10px 16px;border-radius:10px;font-size:13px;
  box-shadow:0 12px 30px rgba(20,30,24,.28);z-index:80;max-width:90vw;
}

/* ---------------- 后台 ---------------- */
.admin-body{background:var(--bg)}
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:24px}
.login-card{width:min(400px,100%)}
.login-card .logo{margin:0 auto 14px}
.login-card h1{text-align:center;font-size:20px;margin:0 0 4px}
.login-card .sub{text-align:center;margin-bottom:22px}
.admin-header{
  background:var(--paper);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;
}
.admin-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 0}
.admin-tabs{display:flex;gap:4px;flex-wrap:wrap}
.admin-tab{
  border:0;background:transparent;padding:8px 12px;border-radius:9px;cursor:pointer;
  color:var(--muted);font-size:13px;
}
.admin-tab:hover{background:#f0ece1;color:var(--ink)}
.admin-tab.active{background:var(--green);color:#fff;font-weight:600}
.admin-main{padding:22px 0 44px}
.section-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.section-head h2{margin:0;font-size:18px}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-bottom:18px}
.stat{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.stat .n{font-size:28px;font-weight:700;color:var(--green);font-variant-numeric:tabular-nums}
.stat .k{color:var(--muted);font-size:12px}
.table-wrap{overflow:auto;background:var(--paper);border:1px solid var(--line);border-radius:14px}
table{border-collapse:collapse;width:100%;font-size:13px;min-width:640px}
th,td{text-align:left;padding:9px 12px;border-bottom:1px solid #eee8da;white-space:nowrap}
th{background:#f4f0e5;color:var(--muted);font-weight:600;font-size:12px;position:sticky;top:0}
tr:last-child td{border-bottom:0}
td.mono,th.mono{font-family:"Cascadia Mono",Consolas,monospace}
.tag{display:inline-block;border-radius:999px;padding:2px 9px;font-size:12px;font-weight:600}
.tag.available{background:#e5f1ea;color:var(--green)}
.tag.sold{background:#f6ecd9;color:#8a641c}
.tag.expired,.tag.closed{background:#eeeae1;color:#7a7468}
.tag.unused{background:#e5f1ea;color:var(--green)}
.tag.used{background:#f6ecd9;color:#8a641c}
.tag.void{background:#fbe9e9;color:var(--danger)}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.form-grid .field{margin:0}
textarea.input{min-height:120px;resize:vertical;letter-spacing:0;text-transform:none}
.panel + .panel{margin-top:16px}
.reveal-box{
  background:#22332a;color:#f7f2e5;border-radius:12px;padding:12px 16px;margin-bottom:14px;
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
}
.reveal-box .code{font-family:"Cascadia Mono",Consolas,monospace;font-size:22px;letter-spacing:3px;color:#ffd98a}
.keys-out{
  width:100%;min-height:150px;font-family:"Cascadia Mono",Consolas,monospace;
  font-size:13px;letter-spacing:.5px;
}
.muted{color:var(--muted)}
.small{font-size:12px}
.row-actions{display:flex;gap:6px;flex-wrap:wrap}
.filters{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end;margin-bottom:12px}
.filters .field{margin:0}
.filters .input{width:auto;min-width:150px}
@media (max-width:640px){
  .wrap{width:calc(100% - 28px)}
  .site-header .wrap{flex-direction:column;align-items:stretch;gap:10px}
  .tabs{justify-content:center}
  .card .room{font-size:26px}
  .result-room{font-size:32px}
  .result-code{font-size:24px}
  .modal-card{padding:20px}
}