/* ===================================================================
   管理后台样式
   =================================================================== */
:root{
  --gold:#c9a227; --ink:#151a22; --bg:#f4f5f7; --card:#fff; --line:#e6e9ee;
  --txt:#232936; --sub:#7a8496; --ok:#18a058; --err:#e04a4a;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--txt);font:14px/1.6 -apple-system,"PingFang SC","Microsoft YaHei",sans-serif}
a{color:inherit;text-decoration:none}
.layout{display:flex;min-height:100vh}
.side{width:210px;background:var(--ink);color:#c8cfda;flex:0 0 auto;display:flex;flex-direction:column}
.side .brand{padding:20px 18px;border-bottom:1px solid rgba(255,255,255,.08)}
.side .brand b{display:block;color:#fff;font-size:15px}
.side .brand span{font-size:12px;color:#7d889a}
.side nav{padding:10px 0;flex:1}
.side nav a{display:flex;align-items:center;gap:9px;padding:11px 18px;font-size:14px;color:#c8cfda;border-left:3px solid transparent}
.side nav a:hover{background:rgba(255,255,255,.05);color:#fff}
.side nav a.on{background:rgba(201,162,39,.14);color:#f3d67a;border-left-color:var(--gold)}
.side .foot{padding:14px 18px;font-size:12px;color:#68727f;border-top:1px solid rgba(255,255,255,.08)}
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{background:#fff;border-bottom:1px solid var(--line);padding:14px 22px;display:flex;align-items:center;gap:14px}
.topbar h1{font-size:17px;margin:0}
.topbar .sp{flex:1}
.topbar .u{font-size:13px;color:var(--sub)}
.content{padding:20px 22px 40px;flex:1}
.card{background:#fff;border-radius:12px;padding:18px 20px;margin-bottom:16px;box-shadow:0 1px 3px rgba(20,25,35,.06)}
.card h2{font-size:15px;margin:0 0 14px;display:flex;align-items:center;gap:8px}
.card h2 .r{margin-left:auto;font-weight:400;font-size:13px;color:var(--sub)}
.grid{display:grid;gap:14px}
.grid.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.stat{background:#fff;border-radius:12px;padding:16px 18px;box-shadow:0 1px 3px rgba(20,25,35,.06)}
.stat b{display:block;font-size:26px;font-variant-numeric:tabular-nums}
.stat span{font-size:12.5px;color:var(--sub)}
table{width:100%;border-collapse:collapse;font-size:13.5px}
th,td{padding:9px 10px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}
th{background:#fafbfc;color:var(--sub);font-weight:600;white-space:nowrap}
tr:hover td{background:#fcfcfd}
.btn{display:inline-flex;align-items:center;gap:5px;padding:8px 14px;border-radius:9px;border:1px solid var(--line);
  background:#fff;cursor:pointer;font-size:13.5px;font-family:inherit;color:var(--txt)}
.btn:hover{background:#f7f8fa}
.btn.primary{background:linear-gradient(135deg,#d9b44a,#b8901d);border:0;color:#2a2000;font-weight:700}
.btn.danger{color:var(--err);border-color:#f3c9c9}
.btn.sm{padding:5px 10px;font-size:12.5px}
.btn[disabled]{opacity:.5;pointer-events:none}
input[type=text],input[type=password],input[type=number],select,textarea{
  width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:9px;font-size:14px;font-family:inherit;background:#fff;outline:none}
input:focus,select:focus,textarea:focus{border-color:var(--gold)}
label.f{display:block;margin-bottom:12px}
label.f span{display:block;font-size:12.5px;color:var(--sub);margin-bottom:5px}
.row{display:flex;gap:12px;align-items:center}
.row.wrap{flex-wrap:wrap}
.tag{display:inline-block;font-size:12px;padding:2px 8px;border-radius:20px;background:#f1f3f6;color:#5a6478}
.tag.gold{background:#fdf3d7;color:#8a6c05}
.tag.ok{background:#e7f7ee;color:#137a43}
.tag.err{background:#fdeaea;color:#b32b2b}
.avatar{width:34px;height:34px;border-radius:50%;object-fit:cover;background:#eef0f4;vertical-align:middle}
.muted{color:var(--sub);font-size:13px}
.mono{font-family:ui-monospace,Menlo,monospace}
.alert{padding:11px 14px;border-radius:10px;margin-bottom:14px;font-size:13.5px}
.alert.ok{background:#e9f8f0;color:#137a43;border:1px solid #bfe8d2}
.alert.err{background:#fdeeee;color:#b32b2b;border:1px solid #f3c9c9}
.alert.warn{background:#fff8e6;color:#8a6c05;border:1px solid #f3e3b6}
.login-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(140deg,#151a22,#27313f)}
.login{background:#fff;border-radius:16px;padding:30px 28px;width:340px}
.login h1{font-size:19px;margin:0 0 4px;text-align:center}
.login p.sub{text-align:center;color:var(--sub);font-size:12.5px;margin:0 0 20px}
.stage-row{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:10px;margin-bottom:8px}
.stage-row.on{border-color:var(--gold);background:#fffdf5}
.stage-row .grow{flex:1}
.qr-box{display:flex;gap:20px;align-items:center;flex-wrap:wrap}
.qr-box img{width:170px;height:170px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:8px}
.link-box{font-family:ui-monospace,monospace;font-size:12.5px;background:#f7f8fa;border:1px solid var(--line);
  border-radius:8px;padding:8px 10px;word-break:break-all;margin:6px 0}
.pager{display:flex;gap:6px;margin-top:12px}
.pager a,.pager span{padding:5px 10px;border:1px solid var(--line);border-radius:7px;font-size:13px;background:#fff}
.pager span.on{background:var(--ink);color:#fff;border-color:var(--ink)}