:root {
  --bg: #f4f6f9;
  --card: #ffffff;
  --line: #e3e8ef;
  --text: #1f2937;
  --muted: #6b7280;
  --brand: #2563eb;
  --brand-dark: #1d4ed8;
  --green-bg: #ecfdf5; --green-fg: #047857;
  --red-bg: #fef2f2;   --red-fg: #b91c1c;
  --blue-bg: #eff6ff;  --blue-fg: #1d4ed8;
  --gray-bg: #f3f4f6;  --gray-fg: #4b5563;
  --warn-bg: #fffbeb;  --warn-fg: #92400e;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 14px/1.6 -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}
a { color: var(--brand); text-decoration: none; }
code { background: #eef1f5; padding: 1px 5px; border-radius: 4px; font-size: 12px; }
pre {
  background: #0f172a; color: #e2e8f0; padding: 12px 14px;
  border-radius: 8px; overflow-x: auto; font-size: 12.5px;
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 24px 16px 48px; }
.wrap.narrow { max-width: 760px; }

/* 顶栏 */
.topbar { background: #111827; }
.bar-inner { display: flex; align-items: center; gap: 28px; max-width: 1080px; margin: 0 auto; padding: 0 16px; height: 52px; }
.brand { font-weight: 700; font-size: 18px; color: #fff; letter-spacing: .3px; }
.brand span { color: #60a5fa; }
.brand.big { font-size: 26px; margin-bottom: 8px; }
.topbar nav { display: flex; gap: 6px; flex: 1; }
.topbar nav a { color: #d1d5db; padding: 6px 12px; border-radius: 6px; }
.topbar nav a:hover { color: #fff; background: #1f2937; }
.topbar nav a.on { color: #fff; background: #1f2937; }
.logout { margin-left: auto; }

/* 卡片 */
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 12px; padding: 20px 22px; margin-bottom: 18px;
}
.card h2 { font-size: 15px; margin: 0 0 14px; padding-bottom: 10px; border-bottom: 1px solid var(--line); }
.card h3 { font-size: 13.5px; margin: 18px 0 6px; }
.card.help { background: #f8fafc; }

.page-head { display: flex; align-items: center; justify-content: space-between; margin: 4px 0 18px; }
.page-head h1 { font-size: 20px; margin: 0; }

.center-card { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 16px; }
.center-card .card { width: 400px; padding: 28px; }
.center-card h1 { font-size: 18px; margin: 4px 0 6px; }

.empty { text-align: center; padding: 44px 20px; }
.empty h2 { margin: 0 0 8px; }

/* 表单 */
label { display: block; margin: 14px 0 5px; font-weight: 500; }
label small { color: var(--muted); font-weight: 400; }
label.checkbox, label.radio { display: flex; align-items: center; gap: 8px; font-weight: 400; margin: 10px 0; cursor: pointer; }
input[type=text], input[type=email], input[type=password], input[type=number], select {
  width: 100%; padding: 8px 11px; border: 1px solid var(--line); border-radius: 8px;
  font-size: 14px; background: #fff; color: var(--text);
}
input:focus, select:focus { outline: 2px solid #bfdbfe; border-color: var(--brand); }
.radio-row { display: flex; gap: 20px; flex-wrap: wrap; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.form-actions { margin-top: 18px; display: flex; gap: 10px; }

/* 按钮 */
.btn {
  display: inline-block; border: 1px solid var(--line); background: #fff; color: var(--text);
  border-radius: 8px; padding: 7px 14px; font-size: 13.5px; cursor: pointer; line-height: 1.4;
}
.btn:hover { border-color: #c7d2fe; background: #f8fafc; }
.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn.primary:hover { background: var(--brand-dark); }
.btn.danger { color: var(--red-fg); border-color: #fecaca; }
.btn.danger:hover { background: var(--red-bg); }
.btn.ghost { background: transparent; border-color: transparent; color: #d1d5db; }
.topbar .btn.ghost:hover { color: #fff; background: #1f2937; }
.btn.sm { padding: 4px 10px; font-size: 12.5px; }
.btn.block { width: 100%; margin-top: 18px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
form.inline { display: inline; }

/* 表格 */
.table-card { padding: 0; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
thead th { background: #f8fafc; font-size: 12.5px; color: var(--muted); font-weight: 600; }
tbody tr:last-child td { border-bottom: none; }
td.ops { white-space: nowrap; }
td.ops > * { margin-right: 4px; }
.primary-domain { font-weight: 600; }
.nowrap { white-space: nowrap; }
.errmsg { color: var(--red-fg); max-width: 380px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* 徽章 */
.badge {
  display: inline-block; padding: 2px 9px; border-radius: 999px;
  font-size: 12px; font-weight: 500;
}
.badge.green { background: var(--green-bg); color: var(--green-fg); }
.badge.red { background: var(--red-bg); color: var(--red-fg); }
.badge.blue { background: var(--blue-bg); color: var(--blue-fg); }
.badge.gray { background: var(--gray-bg); color: var(--gray-fg); }

/* 提示 */
.alert { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; }
.alert.ok { background: var(--green-bg); color: var(--green-fg); border: 1px solid #a7f3d0; }
.alert.err { background: var(--red-bg); color: var(--red-fg); border: 1px solid #fecaca; }
.alert.warn { background: var(--warn-bg); color: var(--warn-fg); border: 1px solid #fde68a; }

.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.hint { margin-top: 4px; }

@media (max-width: 640px) {
  .bar-inner { gap: 10px; overflow-x: auto; }
  .two-col { grid-template-columns: 1fr; }
}