:root{
  --ink:#06070b;
  --panel:rgba(14,17,26,.78);
  --line:rgba(214,177,122,.26);
  --gold:#d6b17a;
  --gold-2:#f4ddb0;
  --ivory:#f7f2e8;
  --mute:#9aa3b5;
  --danger:#e07a7a;
  --shadow:0 40px 90px rgba(0,0,0,.5);
  --cn:"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",sans-serif;
  --num:"SF Pro Text","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--ink);color:var(--ivory);font-family:var(--cn);font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased}
body{
  background:
    radial-gradient(1100px 640px at 8% -8%, rgba(214,177,122,.18), transparent 58%),
    radial-gradient(900px 520px at 100% 8%, rgba(74,98,160,.16), transparent 52%),
    linear-gradient(180deg,#07080d 0%,#0b0e16 46%,#06070b 100%);
}
body:before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.14;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='.38'/></svg>");
}
.wrap{position:relative;z-index:1;max-width:1180px;margin:0 auto;padding:22px 18px 56px}
.serif{font-family:var(--cn);font-weight:600}
.kicker{letter-spacing:.12em;text-transform:uppercase;color:var(--gold);font-size:12px;font-weight:600}
.mute{color:var(--mute)}
.hidden{display:none!important}

.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:10px}
.brand{display:flex;align-items:center;gap:12px}
.mark{
  width:44px;height:44px;border-radius:14px;
  background:linear-gradient(160deg,#f7e3b6,#c4964c 58%,#8a6328);
  color:#2a1b08;display:grid;place-items:center;font-weight:800;font-size:22px;
  box-shadow:0 10px 28px rgba(196,150,76,.32);
}
.brand b{display:block;font-size:18px;letter-spacing:0;font-weight:600}
.brand small{display:block;color:var(--mute);font-size:12px;letter-spacing:.08em;margin-top:3px}
.credits{
  display:flex;align-items:center;gap:10px;padding:7px 12px 7px 8px;
  border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.03);backdrop-filter:blur(16px)
}
.credits em{font-style:normal;font-family:var(--num);font-size:16px;line-height:1;color:var(--gold-2);font-weight:600;font-variant-numeric:tabular-nums}
.ghost{height:34px;border:1px solid var(--line);background:transparent;color:var(--ivory);border-radius:999px;padding:0 14px;cursor:pointer}
.ghost:hover{border-color:var(--gold);color:var(--gold-2)}

.hero{padding:28px 0 6px}
.hero h1{margin:12px 0 10px;font-size:28px;font-weight:600;letter-spacing:0;line-height:1.35}
.hero p{margin:0;max-width:560px;color:var(--mute);line-height:1.7;font-size:15px}

.stage{display:grid;grid-template-columns:minmax(0,1fr) 370px;gap:22px;align-items:start;margin-top:26px}
.panel{
  background:var(--panel);border:1px solid var(--line);border-radius:30px;
  padding:24px;box-shadow:var(--shadow);backdrop-filter:blur(24px);
}
.panel h2{margin:0 0 6px;font-size:20px;letter-spacing:0;font-weight:600}
.panel .sub{margin:0 0 18px;color:var(--mute);font-size:13px;line-height:1.7}
label{display:block;margin:16px 0 8px;color:var(--gold);font-size:12px;letter-spacing:.08em}
textarea,input,select{
  width:100%;border:1px solid rgba(214,177,122,.2);border-radius:16px;
  background:rgba(6,7,11,.58);color:var(--ivory);outline:none;
  font:15px/1.55 var(--cn)
}
textarea{min-height:220px;padding:16px;resize:vertical}
input,select{height:48px;padding:0 14px}
#fAccount,#fAmount,#fTime,#cardKey,#genCount,#genCredits,#addAmount{
  font-family:var(--num);font-size:15px;font-variant-numeric:tabular-nums
}
textarea:focus,input:focus{border-color:var(--gold);box-shadow:0 0 0 4px rgba(214,177,122,.12)}
.hint{margin-top:8px;color:#7e8798;font-size:12px;line-height:1.65}
.mode-switch{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:4px 0 6px}
.mode-btn{
  height:40px;border-radius:999px;cursor:pointer;
  border:1px solid rgba(214,177,122,.2);background:rgba(255,255,255,.03);color:#d9deea;
  letter-spacing:0;font-size:14px;font-family:var(--cn)
}
.mode-btn.active,.mode-btn:hover{border-color:var(--gold);color:#2a1b08;background:linear-gradient(180deg,#f7e3b6,#c4964c);font-weight:700}
.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}
.field-grid > div{min-width:0}
.bank-cell{grid-column:1 / -1}
.bank-box{position:relative}
.bank-list{
  position:absolute;left:0;right:0;top:calc(100% + 6px);z-index:20;
  max-height:240px;overflow:auto;padding:6px;
  background:#10131c;border:1px solid var(--line);border-radius:14px;
  box-shadow:0 18px 40px rgba(0,0,0,.45)
}
.bank-item{
  width:100%;text-align:left;border:0;background:transparent;color:var(--ivory);
  padding:10px 12px;border-radius:10px;cursor:pointer;font-size:14px
}
.bank-item:hover,.bank-item.active{background:rgba(214,177,122,.16);color:var(--gold-2)}
.bank-empty{padding:10px 12px;color:var(--mute);font-size:12px}

.batteries{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  min-width:52px;height:36px;padding:0 11px;border-radius:999px;cursor:pointer;
  border:1px solid rgba(214,177,122,.2);background:rgba(255,255,255,.03);color:#d9deea;
  font:15px/36px var(--num)
}
.chip.active,.chip:hover{border-color:var(--gold);color:#2a1b08;background:linear-gradient(180deg,#f7e3b6,#c4964c);font-weight:700}

.btn{
  width:100%;height:54px;margin-top:20px;border:0;border-radius:16px;cursor:pointer;
  background:linear-gradient(180deg,#f7e3b6,#c4964c 62%,#9a7340);color:#2a1b08;
  font-size:16px;font-weight:700;letter-spacing:0;font-family:var(--cn);box-shadow:0 16px 32px rgba(154,115,64,.28)
}
.btn:hover{filter:brightness(1.05)}
.btn:disabled{opacity:.55;cursor:wait}
.err{min-height:22px;margin-top:10px;color:var(--danger);font-size:13px}

.phone{
  position:relative;border-radius:38px;padding:16px 16px 18px;
  background:linear-gradient(180deg,rgba(247,227,182,.13),rgba(255,255,255,.03));
  border:1px solid var(--line)
}
.phone:after{content:"";display:block;width:108px;height:5px;margin:12px auto 0;border-radius:99px;background:rgba(255,255,255,.18)}
.phone-inner{
  min-height:560px;border-radius:28px;overflow:hidden;background:#10131c;display:grid;place-items:center;
  user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;-webkit-user-drag:none
}
.phone-inner img,.preview-shot,.preview-canvas{width:100%;display:block;background:#f5f5f5;pointer-events:none;-webkit-touch-callout:none;-webkit-user-drag:none}
.preview-shot{
  min-height:560px;padding-top:216.8%;
  background-size:cover;background-position:top center;background-repeat:no-repeat;
  pointer-events:none;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none
}
.preview-wrap{
  position:relative;width:100%;min-height:560px;overflow:hidden;background:#f5f5f5;
  user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;-webkit-user-drag:none
}
.preview-canvas{width:100%;height:auto;display:block;pointer-events:none}
.preview-shield{
  position:absolute;inset:0;z-index:2;background:transparent;
  display:flex;align-items:flex-end;justify-content:center;padding:0 14px 16px;
  cursor:default;touch-action:manipulation
}
.preview-shield span{
  font-size:11px;letter-spacing:.08em;color:rgba(255,255,255,.86);
  background:rgba(0,0,0,.46);padding:7px 12px;border-radius:999px;pointer-events:none
}
.placeholder{padding:46px 28px;text-align:center;color:var(--mute)}
.placeholder b{display:block;margin:12px 0 8px;color:var(--ivory);font-size:18px;letter-spacing:0;font-weight:600}
.actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}
.actions button{height:44px;border-radius:13px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--ivory);cursor:pointer;font:15px/44px var(--cn)}
.actions button:disabled{opacity:.4;cursor:not-allowed}
.meta{margin-top:12px;color:var(--mute);font-size:12px;line-height:1.7}

.login-shell{min-height:100vh;display:grid;place-items:center;padding:24px;position:relative;z-index:1}
.login-card{
  width:min(470px,100%);padding:46px 34px 34px;border-radius:34px;text-align:center;
  background:rgba(10,13,22,.8);border:1px solid var(--line);box-shadow:var(--shadow);backdrop-filter:blur(26px)
}
.login-card .mark{margin:0 auto 18px}
.login-card h1{margin:8px 0;font-size:28px;letter-spacing:0;font-weight:600}
.login-card p{margin:0 0 26px;color:var(--mute);line-height:1.7;font-size:15px}
.login-card input{text-align:center;letter-spacing:0;font-family:var(--num);font-size:15px}
.login-card .btn{letter-spacing:0}

.admin-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:18px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:18px 0}
.stat{padding:16px;border-radius:18px;border:1px solid var(--line);background:rgba(255,255,255,.03)}
.stat b{display:block;font-size:24px;line-height:1.2;color:var(--gold-2);margin-top:6px;font-family:var(--num);font-weight:600;font-variant-numeric:tabular-nums}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{padding:10px 8px;border-bottom:1px solid rgba(255,255,255,.06);text-align:left;word-break:break-all}
th{color:var(--gold);font-weight:600;letter-spacing:0}
.keys{white-space:pre-wrap;background:rgba(0,0,0,.28);border-radius:14px;padding:12px;min-height:80px;color:var(--gold-2);font-family:var(--num);font-size:15px;line-height:1.6}

@media (max-width:980px){
  .stage,.admin-grid{grid-template-columns:1fr}
  .phone{order:-1}
  .hero h1{font-size:24px}
}
@media (max-width:640px){
  .wrap{padding:14px 12px 40px}
  .panel{padding:16px;border-radius:22px}
  .login-card{padding:34px 18px}
  .stats{grid-template-columns:1fr}
  .field-grid{grid-template-columns:1fr}
}