:root{
  --bg:#fff; --text:#0b0b0b; --muted:#6a6a6a; --line:rgba(0,0,0,0.12);
}
*{box-sizing:border-box}
body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial;background:var(--bg);color:var(--text)}
.bar{position:sticky;top:0;z-index:10;background:var(--bg);border-bottom:1px solid var(--line);padding:14px 18px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.left{display:flex;align-items:center;gap:12px}
h1{margin:0;font-size:18px;font-weight:600}
.back{color:var(--text);text-decoration:none;border-bottom:1px solid rgba(0,0,0,0.18)}
.right{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.wrap{width:min(1100px,calc(100% - 36px));margin:18px auto 40px}
.panel{border:1px solid var(--line);padding:16px;border-radius:12px}
.hint{margin:0 0 14px;color:var(--muted);font-size:13px;line-height:1.35}
.row{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.lbl{font-size:13px;color:var(--muted)}
.in{flex:1;border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-size:14px}
.count{font-size:13px;color:var(--muted)}
.btn{border:1px solid var(--line);background:transparent;border-radius:999px;padding:8px 10px;cursor:pointer;font-size:13px}
.btn:hover{background:rgba(0,0,0,0.03)}
.file{border:1px solid var(--line);border-radius:999px;padding:8px 10px;font-size:13px;cursor:pointer}
.file input{display:none}
.list{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
@media (max-width:900px){.list{grid-template-columns:repeat(3,1fr)}}
@media (max-width:640px){.list{grid-template-columns:repeat(2,1fr)}}
.item{border:1px solid var(--line);border-radius:10px;padding:10px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.id{font-variant-numeric:tabular-nums;font-size:13px}
.sold{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}