:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --green: #10b981;
  --purple: #8b5cf6;
  --orange: #f59e0b;
  --red: #ef4444;
  --ink: #1f2937;
  --muted: #6b7280;
  --bg: #f5f7fb;
  --card: #ffffff;
  --border: #e5e7eb;
  --radius: 12px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
}
a { color: var(--primary); text-decoration: none; }
.navbar {
  background: linear-gradient(90deg, #1e3a8a, #2563eb);
  color: #fff;
  padding: 14px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 2px 12px rgba(30, 58, 138, .25);
}
.navbar .brand { font-weight: 700; font-size: 18px; letter-spacing: .5px; }
.navbar .nav-links a {
  color: #dbe7ff;
  margin-left: 18px;
  font-size: 14px;
}
.navbar .nav-links a:hover, .navbar .nav-links a.active { color: #fff; font-weight: 600; }
.navbar .user-info { font-size: 13px; color: #cfe0ff; }
.container { max-width: 1120px; margin: 24px auto; padding: 0 20px; }
.grid { display: grid; gap: 16px; }
.grid.cols-2 { grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: 0 1px 4px rgba(0,0,0,.04);
}
.card h3 { font-size: 15px; margin-bottom: 12px; color: #111827; }
.card h3 .hint { font-weight: 400; font-size: 12px; color: var(--muted); margin-left: 8px; }
.stat { text-align: center; padding: 14px 8px; }
.stat .num { font-size: 26px; font-weight: 800; color: var(--primary-dark); }
.stat .num.green { color: var(--green); }
.stat .num.purple { color: var(--purple); }
.stat .num.orange { color: var(--orange); }
.stat .label { font-size: 12.5px; color: var(--muted); margin-top: 4px; }
label { display: block; font-size: 13px; color: #374151; margin: 10px 0 4px; }
input, select, textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  outline: none;
  background: #fff;
}
input:focus, select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
button {
  border: none;
  border-radius: 8px;
  padding: 9px 18px;
  font-size: 14px;
  cursor: pointer;
  font-weight: 600;
  transition: .15s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-green { background: var(--green); color: #fff; }
.btn-purple { background: var(--purple); color: #fff; }
.btn-ghost { background: #f3f4f6; color: #374151; }
.btn-danger { background: #ef4444; color: #fff; }
.btn-danger:hover { background: #dc2626; }
.btn-block { width: 100%; margin-top: 14px; }
.btn-sm { padding: 5px 12px; font-size: 12.5px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th, td { padding: 9px 10px; text-align: left; border-bottom: 1px solid var(--border); }
th { background: #f9fafb; color: #374151; font-weight: 600; white-space: nowrap; }
.badge { display: inline-block; padding: 2px 9px; border-radius: 20px; font-size: 11.5px; font-weight: 600; }
.badge.green { background: #d1fae5; color: #065f46; }
.badge.blue { background: #dbeafe; color: #1e40af; }
.badge.purple { background: #ede9fe; color: #5b21b6; }
.badge.orange { background: #fef3c7; color: #92400e; }
.badge.red { background: #fee2e2; color: #991b1b; }
.badge.gray { background: #f3f4f6; color: #4b5563; }
.msg { margin-top: 10px; font-size: 13px; padding: 8px 12px; border-radius: 8px; display: none; }
.msg.ok { display: block; background: #ecfdf5; color: #065f46; }
.msg.err { display: block; background: #fef2f2; color: #991b1b; }
.login-box { max-width: 420px; margin: 60px auto; }
.divider { border: none; border-top: 1px dashed var(--border); margin: 16px 0; }
.mono { font-family: Consolas, Menlo, monospace; font-size: 12.5px; background: #f3f4f6; padding: 2px 6px; border-radius: 4px; word-break: break-all; }
.section-title { font-size: 16px; font-weight: 700; margin: 22px 0 12px; color: #111827; }
.empty { color: var(--muted); font-size: 13px; padding: 16px; text-align: center; }
.copy-input { display: flex; gap: 8px; }
.copy-input input { flex: 1; }
.copy-input button { white-space: nowrap; }
.hero {
  background: linear-gradient(120deg, #1e3a8a, #2563eb 60%, #0ea5e9);
  border-radius: 16px;
  color: #fff;
  padding: 26px 30px;
  margin-bottom: 22px;
}
.hero h2 { font-size: 22px; margin-bottom: 6px; }
.hero p { font-size: 14px; color: #dce7ff; }
.hero .badges { margin-top: 12px; }
.hero .badge { background: rgba(255,255,255,.18); color: #fff; margin-right: 8px; }
.flowbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-size: 12.5px; color: var(--muted); }
.flowbar .seg { background: #f3f4f6; border-radius: 6px; padding: 4px 10px; }
.flowbar .arrow { color: #9ca3af; }

/* ============ 修改密码弹窗（四端通用） ============ */
.pwd-mask { position: fixed; inset: 0; background: rgba(17,24,39,0.45); display: flex; align-items: center; justify-content: center; z-index: 1000; }
.pwd-panel { width: 360px; max-width: 92vw; padding: 24px; }
.pwd-panel .login-row { margin-bottom: 10px; }
.pwd-panel h3 { margin-bottom: 4px; }