:root{
  --bg:#f5f7fb;
  --panel:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --border:#e6eaf2;
  --border-strong:#d6dbe7;
  --primary:#2563eb;
  --primary-weak:#e8efff;
  --danger:#dc2626;
  --warn:#d97706;
  --notice:#0ea5e9;
  --shadow: 0 12px 28px rgba(15, 23, 42, .08);
  --shadow-soft: 0 8px 18px rgba(15, 23, 42, .06);
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Arial, "PingFang SC","Microsoft YaHei", sans-serif;
  background:
    radial-gradient(1200px 600px at 20% 0%, #eef2ff 0%, rgba(238,242,255,0) 55%),
    radial-gradient(1000px 600px at 80% 0%, #ecfeff 0%, rgba(236,254,255,0) 55%),
    var(--bg);
  color:var(--text);
}
a{color:inherit}
.container{max-width:1200px;margin:0 auto;padding:22px}
.topbar{
  position:sticky;top:0;z-index:10;
  backdrop-filter: blur(10px);
  background: rgba(255,255,255,.86);
  border-bottom:1px solid var(--border);
}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand a{font-weight:800;letter-spacing:.2px;text-decoration:none}
.nav{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.nav a{text-decoration:none;color:var(--muted);padding:8px 10px;border-radius:10px}
.nav a:hover{color:var(--text);background: rgba(37,99,235,.06)}
.nav__sep{width:1px;height:18px;background:var(--border);display:inline-block}
.nav__user{color:var(--muted);font-size:13px}
.nav__danger{color:var(--danger)}

.h1{font-size:24px;margin:0 0 10px;letter-spacing:.2px}
.h2{font-size:16px;margin:0 0 10px;color:var(--text)}
.muted{color:var(--muted);font-size:13px;line-height:1.5}
.mono{font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; font-size: 12.5px;}
.sep{color:var(--border-strong);padding:0 6px}

.page-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin:10px 0 14px}
.page-head__actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.subhead{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px}
.pill{border:1px solid var(--border);padding:4px 10px;border-radius:999px;background: rgba(255,255,255,.9)}
.pill--danger{border-color: rgba(220,38,38,.25); color: var(--danger); background: rgba(220,38,38,.06)}
.pill--warn{border-color: rgba(217,119,6,.25); color: var(--warn); background: rgba(217,119,6,.06)}

.card{
  background: var(--panel);
  border:1px solid var(--border);
  border-radius:16px;
  padding:18px;
  box-shadow: var(--shadow);
}
.card--narrow{max-width:560px;margin:28px auto}
.card__head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px}
.link{color:var(--primary);text-decoration:none}
.link:hover{text-decoration:underline}

.grid{display:grid;gap:14px}
.grid--2{grid-template-columns: 1fr 1fr}
.grid--4{grid-template-columns: repeat(4, 1fr)}
@media (max-width: 900px){
  .grid--2,.grid--4{grid-template-columns: 1fr}
}

.stat{
  background: linear-gradient(180deg, #ffffff 0%, #fbfcff 100%);
  border:1px solid var(--border);
  border-radius:16px;
  padding:16px;
  box-shadow: var(--shadow-soft);
}
.stat__label{color:var(--muted);font-size:12px}
.stat__value{font-size:24px;font-weight:800;margin-top:6px;letter-spacing:.2px}

.form{display:flex;flex-direction:column;gap:12px}
.form--grid{display:grid;grid-template-columns: 1fr 1fr;gap:12px}
.field{display:flex;flex-direction:column;gap:6px}
.field--row{flex-direction:row;align-items:center}
.field--full{grid-column:1/-1}
label{color:var(--muted);font-size:13px}
.input{
  background: #ffffff;
  border:1px solid var(--border-strong);
  color:var(--text);
  border-radius:12px;
  padding:10px 12px;
  outline:none;
}
.input:focus{border-color: rgba(37,99,235,.55); box-shadow: 0 0 0 4px rgba(37,99,235,.12)}
.checkbox{color:var(--muted);font-size:13px}
.actions{display:flex;gap:10px;align-items:center;justify-content:flex-end}

.btn{
  border:1px solid var(--border-strong);
  background: #ffffff;
  color:var(--text);
  padding:9px 12px;
  border-radius:12px;
  cursor:pointer;
  text-decoration:none;
  font-size:13px;
  box-shadow: 0 1px 0 rgba(15,23,42,.04);
}
.btn:hover{border-color: rgba(37,99,235,.25); box-shadow: 0 8px 16px rgba(15,23,42,.06)}
.btn--primary{
  background: linear-gradient(180deg, #3b82f6 0%, #2563eb 100%);
  border-color: rgba(37,99,235,.55);
  color:#ffffff;
}
.btn--primary:hover{border-color: rgba(37,99,235,.8)}
.btn--ghost{background: transparent}
.btn--danger{
  background: rgba(220,38,38,.08);
  border-color: rgba(220,38,38,.28);
  color: var(--danger);
}
.inline{display:inline}

/* Pagination */
.pagination{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-top:20px;
  padding-top:16px;
  border-top:1px solid var(--border);
}
.pagination__info{
  color:var(--muted);
  font-size:13px;
}
.pagination__links{
  display:flex;
  align-items:center;
  gap:6px;
}
.pagination__links .btn{
  padding:6px 10px;
  min-width:32px;
  text-align:center;
}
.pagination__links .btn.disabled{
  opacity:0.5;
  cursor:not-allowed;
}
.pagination__ellipsis{
  color:var(--muted);
  padding:0 4px;
}

.filters{
  display:grid;
  grid-template-columns: 2fr 1fr 1fr 1fr auto auto;
  gap:10px;
  align-items:center;
  margin-bottom:12px;
}
@media (max-width: 900px){
  .filters{grid-template-columns:1fr; }
}

.table{width:100%;border-collapse:separate;border-spacing:0}
.table th,.table td{padding:12px 12px;border-bottom:1px solid var(--border);text-align:left;font-size:13px;vertical-align:top}
.table th{color:var(--muted);font-weight:700;background: #fbfcff}
.table tr:hover td{background: rgba(37,99,235,.03)}
.row--danger{background: rgba(220,38,38,.05)}
.row--warn{background: rgba(217,119,6,.05)}
.row--notice{background: rgba(14,165,233,.05)}

.empty{color:var(--muted);padding:14px}
.dl{display:grid;grid-template-columns: 1fr 1fr;gap:10px}
.dl dt{color:var(--muted);font-size:12px}
.dl dd{margin:2px 0 0}
.notes{margin-top:10px;color:var(--muted);white-space:pre-wrap}

.flash-list{display:flex;flex-direction:column;gap:10px;margin:10px 0 16px}
.flash{
  border-radius:14px;
  padding:12px 12px;
  border:1px solid var(--border);
  background: #ffffff;
  font-size:13px;
  box-shadow: var(--shadow-soft);
}
.flash--success{border-color: rgba(16,185,129,.25)}
.flash--warning{border-color: rgba(217,119,6,.25)}
.flash--danger{border-color: rgba(220,38,38,.25)}