/* 后台样式：朴素、信息优先，不引外部字体/CDN（CSP 只允许同源） */
:root{
  --bg:#f5f6f8; --card:#fff; --line:#e3e6ea; --text:#1f2328; --muted:#6b7280;
  --brand:#1a56db; --good:#0f7b3f; --warn:#b45309; --bad:#b91c1c; --orange:#c2410c;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);
     font:14px/1.6 -apple-system,"Segoe UI","Microsoft YaHei",Roboto,Helvetica,Arial,sans-serif}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
code{background:#f0f2f5;padding:1px 5px;border-radius:4px;font-size:12.5px}

.topbar{display:flex;align-items:center;gap:18px;background:#fff;border-bottom:1px solid var(--line);
        padding:12px 20px;position:sticky;top:0;z-index:5;flex-wrap:wrap}
.brand{font-weight:600}
.topbar nav{display:flex;gap:4px}
.topbar nav a{padding:6px 12px;border-radius:6px;color:var(--text)}
.topbar nav a.on{background:#eef2ff;color:var(--brand);font-weight:600}
.topbar form{margin-left:auto}
.who{color:var(--muted);margin-right:8px}

main{max-width:1080px;margin:20px auto 40px;padding:0 16px}
footer{max-width:1080px;margin:0 auto 30px;padding:0 16px;color:var(--muted);font-size:12.5px;
       display:flex;gap:8px}

.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px 18px;margin-bottom:16px}
.card.narrow{max-width:520px;margin:60px auto}
.card h1{font-size:20px;margin:0 0 10px}
.card h2{font-size:15px;margin:0 0 10px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid .card{margin-bottom:16px}
@media (max-width:760px){.grid{grid-template-columns:1fr}}

.muted{color:var(--muted)}
.small{font-size:12.5px}
.big{font-size:18px;font-weight:600;margin:6px 0}
.good{color:var(--good)} .bad{color:var(--bad)} .warn{color:var(--warn)}
.warnbox{border-color:#f6d28a;background:#fffbf0}

label{display:block;margin:8px 0}
input,select{font:inherit;padding:7px 9px;border:1px solid var(--line);border-radius:6px;
             background:#fff;width:100%}
input.thin{max-width:130px}
input.num{text-align:right}
button{font:inherit;padding:7px 14px;border:1px solid var(--line);background:#fff;border-radius:6px;cursor:pointer}
button:hover{background:#f7f8fa}
button.primary{background:var(--brand);border-color:var(--brand);color:#fff}
button.primary:hover{background:#1546b8}
button.mini{padding:5px 10px;font-size:13px}
button.danger{color:var(--bad);border-color:#f0c3c3}
button.link{background:none;border:none;color:var(--brand);padding:0}
button:disabled{opacity:.5;cursor:not-allowed}

.row{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end}
.row label{flex:0 0 auto;min-width:150px}
.row label.wide{flex:1 1 320px}
form.inline{display:inline}

table{width:100%;border-collapse:collapse}
th,td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
th{font-weight:600;color:var(--muted);font-size:12.5px;white-space:nowrap}
td.num,th.num{text-align:right}
table.kv th{width:190px;color:var(--text);font-weight:600}
.scroll{overflow-x:auto}
tr.needfill{background:#fffbf0}
.chk{display:inline-flex;align-items:center;gap:4px;white-space:nowrap}
.chk input{width:auto}

.flash{padding:10px 14px;border-radius:8px;margin-bottom:14px;border:1px solid}
.flash.ok{background:#effaf3;border-color:#b7e4c7;color:var(--good)}
.flash.error{background:#fdf1f1;border-color:#f3c2c2;color:var(--bad)}
.flash.warn{background:#fffbf0;border-color:#f6d28a;color:var(--warn)}

ul.alerts{list-style:none;padding:0;margin:0}
ul.alerts li{padding:8px 10px;border-left:3px solid var(--line);margin-bottom:6px;background:#fafbfc}
ul.alerts li.red{border-color:var(--bad)}
ul.alerts li.orange{border-color:var(--orange)}

.group{border:1px solid var(--line);border-radius:8px;padding:12px 14px;margin-bottom:12px;
       display:flex;gap:14px;align-items:flex-start;flex-wrap:wrap}
.group .grow{flex:1 1 520px}
.group .gactions{display:flex;gap:8px;padding-top:22px}
.ell{max-width:360px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}