:root{--navy:#0b2a63;--blue:#1d58b8;--red:#d0103a;--green:#2f8f3a;--bg:#f3f6fb;--line:#e1e7f0;--text:#1f2a3d;--muted:#8592a6}
*{box-sizing:border-box}
body{margin:0;font:14px/1.6 -apple-system,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg)}
a{color:var(--blue);text-decoration:none}
h2{margin:0 0 16px;font-size:20px;color:var(--navy)}
h3{margin:0 0 12px;font-size:16px;color:var(--navy)}
.topbar{height:56px;background:linear-gradient(90deg,var(--navy),var(--blue));color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 20px;position:sticky;top:0;z-index:10}
.brand{font-size:18px;font-weight:700}
.top-links a,.top-links span{color:#fff;margin-left:16px;opacity:.9}
.layout{display:flex;min-height:calc(100vh - 56px)}
.side{width:180px;background:#fff;border-right:1px solid var(--line);padding:12px 0;flex-shrink:0}
.side a{display:block;padding:12px 24px;color:var(--text);border-left:3px solid transparent}
.side a:hover{background:var(--bg)}
.side a.on{background:#eaf1fd;color:var(--blue);border-left-color:var(--blue);font-weight:600}
.side a.danger{color:var(--red)}
.main{flex:1;padding:24px;min-width:0}
.card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:20px;margin-bottom:16px}
.alert{padding:12px 16px;border-radius:8px;margin-bottom:16px}
.alert.ok{background:#e8f6ea;color:#1d6b28;border:1px solid #bfe5c4}
.alert.err{background:#fdebee;color:#a10f2f;border:1px solid #f5c0cb}
.btn{display:inline-block;padding:8px 16px;border-radius:6px;border:1px solid var(--line);background:#fff;color:var(--text);cursor:pointer;font-size:14px;line-height:1.4}
.btn:hover{border-color:var(--blue);color:var(--blue)}
.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff}
.btn.primary:hover{background:var(--navy)}
.btn.danger{background:var(--red);border-color:var(--red);color:#fff}
.btn.warn{background:#fff6e5;border-color:#f0b54a;color:#a0660a}
.btn.sm{padding:4px 10px;font-size:13px}
.btn.big{padding:12px 24px;font-size:16px;width:100%}
.btn.huge{padding:22px;font-size:24px;width:100%;border-radius:12px;font-weight:700}
.btn:disabled{opacity:.5;cursor:not-allowed}
.form label{display:block;margin-bottom:14px;color:#4a5670}
.form label.inline,label.inline{display:inline-flex;align-items:center;gap:4px;margin:0 0 0 8px}
.form input:not([type=checkbox]):not([type=file]),.form textarea,.search input{display:block;width:100%;margin-top:6px;padding:9px 12px;border:1px solid var(--line);border-radius:6px;font:inherit;background:#fff}
.form input[type=file]{display:block;margin-top:6px}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(29,88,184,.12)}
.row2,.row3{display:grid;gap:12px}
.row2{grid-template-columns:1fr 1fr}
.row3{grid-template-columns:1fr 1fr 1fr}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid3 .card{margin-bottom:16px}
.tip{color:var(--muted);font-size:13px}
.muted{color:var(--muted)}
.center{text-align:center}
.tbl{width:100%;border-collapse:collapse}
.tbl th,.tbl td{padding:10px 8px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
.tbl th{background:#f7f9fc;color:#4a5670;font-weight:600}
.tbl tr.void td{color:var(--muted);text-decoration:line-through}
.tbl tr.void td:last-child,.tbl tr.void td:nth-last-child(2){text-decoration:none}
.ops{white-space:nowrap}
.ops form{display:inline}
.thumb{height:40px;border-radius:4px;vertical-align:middle}
.thumb.lg{height:80px}
.tag{display:inline-block;padding:1px 8px;border-radius:10px;background:#eef1f5;color:var(--muted);font-size:12px}
.tag.ok{background:#e8f6ea;color:#1d6b28}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:16px}
.stat{background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff;border-radius:10px;padding:18px 20px}
.stat:nth-child(4){background:linear-gradient(135deg,#a30c2e,var(--red))}
.stat b{display:block;font-size:30px;line-height:1.2}
.stat span{opacity:.85}
.steps{margin:0;padding-left:20px}
.steps li{margin-bottom:6px}
.search{display:flex;gap:8px;align-items:center;margin-bottom:12px}
.search input{margin:0;max-width:300px}
.pager{margin-top:12px;display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.pager a{padding:4px 10px;border:1px solid var(--line);border-radius:4px}
.pager a.on{background:var(--blue);color:#fff;border-color:var(--blue)}
.upload-row{padding:12px 0;border-top:1px dashed var(--line)}
.clear-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.clear-item{border:1px solid var(--line);border-radius:10px;padding:18px;display:flex;flex-direction:column}
.clear-item p{flex:1}
.narrow{max-width:420px}
.remote{max-width:560px}
.remote-prizes{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:16px}
.rp{padding:12px;border:2px solid var(--line);border-radius:10px;background:#fff;font-size:16px;font-weight:700;color:var(--navy);cursor:pointer;text-align:left}
.rp small{display:block;font-weight:400;color:var(--muted);font-size:13px}
.rp.on{border-color:var(--blue);background:#eaf1fd}
.rp.done{opacity:.6}
.remote-status{padding:12px;background:var(--bg);border-radius:8px;margin-bottom:12px;font-size:15px}
.remote-result{margin:14px 0;line-height:2.2}
.code{display:inline-block;background:var(--red);color:#fff;padding:2px 12px;border-radius:6px;margin:0 6px 0 0;font-weight:700;font-size:16px}
.auth-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,var(--navy) 0%,var(--blue) 60%,#b30f35 140%);padding:20px}
.auth-box{background:#fff;border-radius:14px;padding:32px;width:100%;max-width:380px;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.auth-box.wide{max-width:560px}
.auth-box h1{margin:0 0 6px;font-size:22px;color:var(--navy);text-align:center}
.auth-box .sub{text-align:center;color:var(--muted);font-size:12px;margin:0 0 20px}
.checks{list-style:none;padding:0;margin:0 0 16px}
.checks li.ok{color:var(--green)}
.checks li.bad{color:var(--red);font-weight:700}
@media (max-width:900px){
  .layout{flex-direction:column}
  .side{width:auto;display:flex;overflow-x:auto;padding:0;border-right:0;border-bottom:1px solid var(--line)}
  .side a{white-space:nowrap;padding:12px 14px;border-left:0;border-bottom:3px solid transparent}
  .side a.on{border-bottom-color:var(--blue)}
  .main{padding:14px}
  .grid3,.clear-grid,.row3{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .tbl{display:block;overflow-x:auto;white-space:nowrap}
  .top-links a:not(:last-child),.top-links span{display:none}
}