:root{--ink:#0A101E;--surface:#111a2c;--surface2:#16223a;--line:rgba(147,160,184,.18);--muted:#93A0B8;--text:#EAF0FA;--cyan:#19B8D4;--violet:#8B5CF6;--green:#3ED598;--red:#F87171;--amber:#F59E0B;--radius:14px;color-scheme:dark}
*{box-sizing:border-box}
body{margin:0;background:var(--ink);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;min-height:100vh}
a{color:inherit;text-decoration:none}

.topbar{display:flex;align-items:center;justify-content:space-between;padding:16px 32px;border-bottom:1px solid var(--line);flex-wrap:wrap;gap:12px}
.brand{font-size:17px;font-weight:700}
.brand .accent{background:linear-gradient(135deg,var(--cyan),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-link{font-size:13px;color:var(--muted);border:1px solid var(--line);padding:7px 14px;border-radius:8px}
.nav-link:hover{border-color:var(--cyan);color:var(--text)}
.topbar-right{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.buyer-field{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted)}
.buyer-field input{background:rgba(147,160,184,.06);border:1px solid var(--line);border-radius:8px;padding:6px 10px;color:var(--text);font-family:inherit;font-size:12.5px;width:120px;outline:none}
.buyer-field input:focus{border-color:var(--cyan)}
.balance-badge{font-size:13px;font-weight:700;color:var(--green);background:rgba(62,213,152,.12);border:1px solid rgba(62,213,152,.3);padding:7px 14px;border-radius:999px}

.container{max-width:1100px;margin:0 auto;padding:28px 32px}
.page-head h1{font-size:24px;font-weight:700;margin:0 0 6px}
.page-head h2{font-size:19px;font-weight:700;margin:0 0 6px}
.page-head p{color:var(--muted);font-size:14px;margin:0 0 26px;max-width:720px}

/* ---------- series ---------- */
.series-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.series-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;cursor:pointer;transition:transform .2s,border-color .2s}
.series-card:hover{transform:translateY(-3px);border-color:rgba(25,184,212,.4)}
.series-card__cover{height:110px;display:flex;align-items:center;justify-content:center;font-size:52px;background:linear-gradient(135deg,rgba(25,184,212,.18),rgba(139,92,246,.18))}
.series-card__body{padding:16px}
.series-card__body h3{margin:0 0 6px;font-size:15px}
.series-card__desc{font-size:12px;color:var(--muted);margin:0 0 12px;line-height:1.5;min-height:36px}
.series-card__meta{display:flex;align-items:center;justify-content:space-between;gap:8px}
.series-card__price{font-size:15px;font-weight:700;color:var(--cyan)}
.series-card__price span{font-size:11px;color:var(--muted);font-weight:400}
.tag{font-size:11px;color:var(--muted);background:rgba(147,160,184,.08);padding:3px 9px;border-radius:999px}
.tag-soldout{color:var(--red);background:rgba(248,113,113,.12)}

/* ---------- loot ---------- */
.loot-list{display:flex;flex-direction:column;gap:8px}
.loot-item{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:12px 14px;display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.loot-item__series{color:var(--muted);font-size:12px;font-weight:400}
.loot-item__meta{color:var(--muted);font-size:12px}
.loot-empty{color:var(--muted);font-size:13px;padding:20px;text-align:center;background:var(--surface);border:1px dashed var(--line);border-radius:10px}

/* ---------- prize table ---------- */
.prize-table{width:100%;border-collapse:collapse;font-size:13.5px;margin-bottom:8px}
.prize-table th{text-align:left;padding:9px 10px;color:var(--muted);font-weight:600;border-bottom:1px solid var(--line);font-size:11.5px}
.prize-table td{padding:10px 10px;border-bottom:1px solid var(--line)}
.prize-row.sold-out{opacity:.55}
.soldout-label{color:var(--red);font-size:12px;font-weight:600}
.prob-sum-note{font-size:12px;color:var(--muted);margin:0 0 16px}
.prob-sum-note strong{color:var(--text)}

.tier-badge{display:inline-block;font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px}
.tier-badge.tier-common{background:rgba(147,160,184,.14);color:var(--text)}
.tier-badge.tier-rare{background:rgba(25,184,212,.14);color:var(--cyan)}
.tier-badge.tier-hidden{background:linear-gradient(135deg,rgba(139,92,246,.22),rgba(245,158,11,.22));color:var(--amber)}

/* ---------- reveal ---------- */
.reveal-result{display:none;text-align:center;padding:22px 16px;border-radius:12px;margin:6px 0 18px;border:1px solid var(--line);background:rgba(147,160,184,.05)}
.reveal-result.show{display:block;animation:reveal-pop .35s ease}
.reveal-title{font-size:13px;color:var(--muted);margin-bottom:8px}
.reveal-prize{font-size:20px;font-weight:800;margin-bottom:8px;display:flex;align-items:center;justify-content:center;gap:8px}
.reveal-sub{font-size:12.5px;color:var(--muted)}
.reveal-result.tier-bg-tier-hidden{border-color:rgba(245,158,11,.4);background:linear-gradient(135deg,rgba(139,92,246,.12),rgba(245,158,11,.12))}
.reveal-result.tier-bg-tier-rare{border-color:rgba(25,184,212,.4);background:rgba(25,184,212,.08)}
@keyframes reveal-pop{from{transform:scale(.92);opacity:0}to{transform:scale(1);opacity:1}}

.modal-backdrop{position:fixed;inset:0;background:rgba(4,8,16,.75);display:none;align-items:center;justify-content:center;padding:20px;z-index:50}
.modal-backdrop.show{display:flex}
.modal{background:var(--surface);border:1px solid var(--line);border-radius:18px;max-width:460px;width:100%;max-height:88vh;overflow:auto;padding:26px}
.modal-wide{max-width:600px}
.modal h2{margin:0 0 6px;font-size:18px}
.modal .sub{color:var(--muted);font-size:12.5px;margin:0 0 18px}
.modal-close{float:right;background:none;border:none;color:var(--muted);font-size:20px;cursor:pointer}

.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.field label{font-size:12px;color:var(--muted);font-weight:600}
.field input,.field select,.field textarea{background:rgba(147,160,184,.06);border:1px solid var(--line);border-radius:8px;padding:9px 11px;color:var(--text);font-family:inherit;font-size:13.5px;outline:none;width:100%}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--cyan)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}

.btn{font-family:inherit;font-size:13.5px;font-weight:600;padding:10px 18px;border-radius:9px;border:1px solid var(--line);background:transparent;color:var(--text);cursor:pointer}
.btn:hover{border-color:var(--cyan)}
.btn-primary{background:linear-gradient(135deg,var(--cyan),var(--violet));border:none;color:#06121A}
.btn-block{width:100%}
.btn-sm{padding:5px 11px;font-size:12px}
.btn-danger{border-color:rgba(248,113,113,.4);color:var(--red)}

.msg{margin:0 0 14px;font-size:12.5px;padding:9px 12px;border-radius:8px}
.msg.error{background:rgba(248,113,113,.1);border:1px solid rgba(248,113,113,.3);color:var(--red)}
.msg.success{background:rgba(62,213,152,.1);border:1px solid rgba(62,213,152,.3);color:var(--green)}

/* ---------- admin ---------- */
.admin-layout{display:flex;min-height:100vh}
.sidebar{width:220px;flex-shrink:0;border-right:1px solid var(--line);padding:20px 14px}
.sidebar .brand{padding:0 10px 20px}
.side-link{display:block;padding:10px 12px;border-radius:9px;font-size:13.5px;color:var(--muted);margin-bottom:4px;cursor:pointer}
.side-link:hover{background:rgba(147,160,184,.06)}
.side-link.active{background:rgba(25,184,212,.12);color:var(--text)}
.admin-main{flex:1;padding:28px 34px;overflow:auto}
.admin-view{display:none}
.admin-view.active{display:block}

.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:26px}
.stat-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.stat-card .num{font-size:26px;font-weight:800}
.stat-card .label{font-size:12px;color:var(--muted);margin-top:4px}

.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;margin-bottom:26px}
.panel h3{margin:0 0 12px;font-size:14px}
.tier-stats{display:flex;gap:22px;flex-wrap:wrap}
.tier-stat{display:flex;align-items:center;gap:10px}
.tier-stat__num{font-size:14px;font-weight:700}

.prob-sum-banner{margin-bottom:16px}
.prob-sum-banner .msg{margin-bottom:0}

table{width:100%;border-collapse:collapse;font-size:13.5px}
th{text-align:left;padding:10px 12px;color:var(--muted);font-weight:600;border-bottom:1px solid var(--line);font-size:12px}
td{padding:11px 12px;border-bottom:1px solid var(--line)}
tr.sold-out td{opacity:.55}
.badge{display:inline-block;font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px}
.table-actions{display:flex;gap:6px}
.table-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;flex-wrap:wrap;gap:12px}
.filter-row{display:flex;gap:6px}
.filter-btn{font-size:12px;padding:6px 12px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--muted);cursor:pointer}
.filter-btn.active{border-color:var(--cyan);color:var(--text)}

@media (max-width:820px){
  .admin-layout{flex-direction:column}
  .sidebar{width:100%;display:flex;overflow-x:auto;border-right:none;border-bottom:1px solid var(--line)}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .field-row{grid-template-columns:1fr}
}