:root{
  --bg:#f1f5f9; --card:#ffffff; --text:#0f172a; --muted:#64748b; --line:#e2e8f0;
  --blue:#2563eb; --blue-dark:#1d4ed8; --green:#059669; --red:#dc2626; --amber:#d97706;
  --shadow:0 8px 24px rgba(15,23,42,.06);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}
.hidden{display:none !important}
.muted{color:var(--muted);font-size:12px}
.error{color:var(--red);min-height:18px;font-size:13px;margin:10px 0 0}
.hint{color:var(--muted);font-size:12px;line-height:1.6;margin:10px 0 0}
button{font:inherit;cursor:pointer}
input,textarea,select{font:inherit;color:var(--text)}
input[type=text],input[type=password],input[type=number],textarea{
  width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;outline:none;transition:border .15s,box-shadow .15s
}
input:focus,textarea:focus{border-color:#93c5fd;box-shadow:0 0 0 3px rgba(37,99,235,.12)}
textarea{resize:vertical;line-height:1.6}
label{display:block;font-size:12px;font-weight:600;color:#334155;margin-bottom:6px}

.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;
  background:radial-gradient(1000px 600px at 20% 0%,#1e3a8a 0%,#0f172a 55%,#020617 100%)}
.login-card{width:100%;max-width:400px;background:#fff;border-radius:22px;padding:34px 30px;box-shadow:0 24px 60px rgba(0,0,0,.35);text-align:center}
.brand-mark{width:60px;height:60px;margin:0 auto 16px;border-radius:16px;background:transparent;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 24px rgba(37,99,235,.35);overflow:hidden}
.brand-mark img{width:100%;height:100%;object-fit:contain;display:block}
.brand-mark.small{width:34px;height:34px;border-radius:9px;margin:0 8px 0 0;display:inline-flex;align-items:center;justify-content:center;vertical-align:middle;box-shadow:none;overflow:hidden}
.login-card h1{font-size:20px;margin:0 0 6px}
.login-card p{margin:0 0 22px}
.login-card label{text-align:left}
.login-card input{margin-bottom:14px}
.login-card .btn{margin-top:2px}
.btn{border:1px solid transparent;border-radius:10px;padding:9px 16px;font-weight:600;background:#fff;color:var(--text);transition:all .15s}
.btn.primary{background:var(--blue);color:#fff;box-shadow:0 6px 16px rgba(37,99,235,.25)}
.btn.primary:hover{background:var(--blue-dark)}
.btn.ghost{border-color:var(--line);color:#334155}
.btn.ghost:hover{background:#f8fafc}
.btn.danger{background:#fef2f2;color:var(--red);border-color:#fecaca}
.btn.wide{width:100%;padding:11px 16px}
.btn:disabled{opacity:.55;cursor:not-allowed}

.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:12px 24px;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.topbar-left{display:flex;align-items:center;gap:6px;font-size:16px}
.topbar-right{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tag{background:#eff6ff;color:var(--blue);border:1px solid #bfdbfe;border-radius:999px;padding:2px 10px;font-size:11px;font-weight:700;margin-left:6px}
.layout{max-width:1400px;margin:0 auto;padding:22px 24px 60px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:16px}
.stat-card{background:var(--card);border-radius:16px;padding:18px 20px;box-shadow:var(--shadow);border:1px solid rgba(226,232,240,.8)}
.stat-card span{display:block;color:var(--muted);font-size:12px;font-weight:600}
.stat-card strong{display:block;font-size:30px;line-height:1.25;margin-top:4px;letter-spacing:-.5px}
.stat-card small{color:var(--muted);font-size:11px}
.columns{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:16px;align-items:start}
.card{background:var(--card);border-radius:16px;padding:20px 22px;box-shadow:var(--shadow);border:1px solid rgba(226,232,240,.8);margin-bottom:16px}
.card-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.card h2{font-size:15px;margin:0}
.card hr{border:0;border-top:1px solid var(--line);margin:16px 0}
.switch-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:8px 0 12px}
.switch-row strong{font-size:14px}
.switch-row p{margin:2px 0 0}
.switch{position:relative;display:inline-block;width:48px;height:27px;flex:0 0 auto;margin:0}
.switch input{opacity:0;width:0;height:0;position:absolute}
.switch span{position:absolute;inset:0;background:#cbd5e1;border-radius:999px;transition:background .2s;cursor:pointer}
.switch span:after{content:"";position:absolute;width:21px;height:21px;left:3px;top:3px;background:#fff;border-radius:50%;transition:transform .2s;box-shadow:0 1px 3px rgba(0,0,0,.25)}
.switch input:checked + span{background:var(--blue)}
.switch input:checked + span:after{transform:translateX(21px)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{margin-bottom:12px}
.ads-list{display:flex;flex-direction:column;gap:12px;margin:8px 0 14px}
.ad-item{display:flex;gap:14px;align-items:flex-start;padding:12px;border:1px solid var(--line);border-radius:14px;background:#f8fafc}
.ad-thumb{width:132px;height:62px;flex:0 0 auto;border-radius:10px;background:#0f172a;overflow:hidden;display:flex;align-items:center;justify-content:center;color:#64748b;font-size:11px}
.ad-thumb img{width:100%;height:100%;object-fit:cover}
.ad-fields{flex:1;min-width:0}
.ad-fields .field{margin-bottom:8px}
.ad-actions{display:flex;gap:8px;flex-wrap:wrap}
.ad-actions .btn{padding:6px 10px;font-size:12px}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:12px}
table{width:100%;border-collapse:collapse;min-width:620px}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);font-size:13px;white-space:nowrap}
th{background:#f8fafc;color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.4px}
tr:last-child td{border-bottom:0}
td.mono{font-variant-numeric:tabular-nums;font-weight:700}
.rank{display:inline-flex;width:24px;height:24px;border-radius:8px;align-items:center;justify-content:center;font-size:12px;font-weight:800;background:#f1f5f9;color:#475569}
.rank.top1{background:#fef3c7;color:#b45309}
.rank.top2{background:#e2e8f0;color:#475569}
.rank.top3{background:#ffedd5;color:#c2410c}
.chart{display:flex;align-items:flex-end;gap:6px;height:180px;padding-top:8px}
.bar-col{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;min-width:0}
.bar-value{font-size:10px;color:var(--muted);margin-bottom:4px}
.bar{width:100%;max-width:26px;background:linear-gradient(180deg,#60a5fa,#2563eb);border-radius:5px 5px 2px 2px;min-height:3px;transition:height .3s}
.bar-label{font-size:9px;color:#94a3b8;margin-top:6px;white-space:nowrap;transform:rotate(-35deg);transform-origin:top center}
.brand-stats{display:flex;flex-direction:column;gap:10px}
.brand-row{display:grid;grid-template-columns:88px 1fr 34px;align-items:center;gap:10px;font-size:12px}
.brand-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}
.brand-bar{height:8px;background:#eff6ff;border-radius:999px;overflow:hidden}
.brand-bar i{display:block;height:100%;background:linear-gradient(90deg,#60a5fa,#2563eb);border-radius:999px}
.brand-count{text-align:right;color:var(--muted);font-variant-numeric:tabular-nums}
.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);background:#0f172a;color:#fff;padding:11px 20px;border-radius:12px;font-size:13px;opacity:0;pointer-events:none;transition:all .22s;z-index:100;box-shadow:0 12px 30px rgba(0,0,0,.25);max-width:80vw;text-align:center}
.toast.show{opacity:1;transform:translate(-50%,0)}
.empty{color:var(--muted);font-size:13px;padding:18px 0;text-align:center}
@media (max-width:1000px){
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .columns{grid-template-columns:1fr}
}
@media (max-width:640px){
  .layout{padding:14px 12px 40px}
  .topbar{padding:10px 12px}
  .topbar-right .btn{padding:7px 10px;font-size:12px}
  .topbar-left .tag{display:none}
  .stats-grid{grid-template-columns:1fr 1fr;gap:10px}
  .stat-card{padding:14px}
  .stat-card strong{font-size:24px}
  .field-row{grid-template-columns:1fr}
  .ad-item{flex-direction:column}
  .ad-thumb{width:100%;height:90px}
}

.speed-nodes{display:flex;flex-direction:column;gap:12px;margin:8px 0 14px}
.speed-node{display:flex;gap:12px;align-items:flex-start;padding:12px;border:1px solid var(--line);border-radius:14px;background:#f8fafc}
.speed-node-fields{flex:1;min-width:0}
.speed-node-actions{display:flex;gap:8px}
.speed-node .field{margin-bottom:8px}
.speed-node .field-row{grid-template-columns:1fr 140px}
.speed-node select{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:#fff}
.speed-node-hint{font-size:12px;line-height:1.6;color:#1d4ed8;background:#eff6ff;border:1px solid #dbeafe;border-radius:10px;padding:8px 12px;margin:2px 0 8px}
@media (max-width:640px){.speed-node{flex-direction:column}.speed-node-actions{width:100%}}

.mini-list{display:flex;flex-direction:column;gap:8px}
.mini-row{display:flex;gap:10px;align-items:flex-start;padding:10px 12px;border:1px solid var(--line);border-radius:12px;background:#f8fafc}
.mini-main{flex:1;min-width:0}
.mini-title{font-size:13px;font-weight:600;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mini-sub{font-size:11px;color:var(--muted);margin-top:2px}
.mini-right{display:flex;flex-direction:column;align-items:flex-end;gap:6px}
.mini-value{font-size:12px;font-weight:700;color:var(--blue);white-space:nowrap}
.mini-del{padding:3px 8px;font-size:11px}
.mini-event{flex-direction:column;gap:3px}
.mini-head{display:flex;justify-content:space-between;align-items:center;gap:8px;width:100%}
.mini-brand{font-size:13px;font-weight:700;color:var(--text)}
.mini-time{font-size:11px;color:var(--muted);white-space:nowrap}
.mini-url{font-size:11px;color:#94a3b8;word-break:break-all;line-height:1.4}

.brand-ad-row{display:grid;grid-template-columns:52px 150px 150px 1fr;gap:12px;align-items:end;padding:10px 12px;border:1px solid var(--line);border-radius:12px;background:#f8fafc;margin-bottom:10px}
.brand-ad-row .field{margin-bottom:0;min-width:0}
.brand-ad-row > .switch{grid-column:1;grid-row:1}
.brand-ad-row > .field select{display:block;width:100%;min-width:0}
@media (max-width:640px){.brand-ad-row{grid-template-columns:52px 1fr}}

.recommend-row{display:grid;grid-template-columns:1fr 120px 1fr auto;gap:10px;align-items:end;padding:10px 12px;border:1px solid var(--line);border-radius:12px;background:#f8fafc;margin-bottom:10px}
.recommend-row .field{margin-bottom:0}
@media (max-width:900px){.recommend-row{grid-template-columns:1fr 1fr}.recommend-row .field:nth-child(3){grid-column:1/-1}}

.field select{display:block;width:100%;min-width:0;padding:10px 34px 10px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;appearance:none;-webkit-appearance:none;outline:none;color:var(--text);background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24'%3E%3Cpath fill='%2394a3b8' d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;background-size:12px;transition:border .15s,box-shadow .15s}
.field select:focus{border-color:#93c5fd;box-shadow:0 0 0 3px rgba(37,99,235,.12)}

.col-side .field-row{grid-template-columns:1fr}
.col-side .brand-ad-row{grid-template-columns:52px minmax(0,1fr)}
.col-side .brand-ad-row > .switch{grid-column:1;grid-row:1}
.col-side .brand-ad-row > .field{grid-column:2;min-width:0}
.col-side .speed-node{flex-direction:column}
.col-side .speed-node-actions{width:100%}
.col-side .recommend-row{grid-template-columns:1fr}
.col-side .recommend-row .field:nth-child(3){grid-column:auto}