:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --success: #16a34a;
  --danger: #dc2626;
  --warn: #f59e0b;
  --bg: #f1f5f9;
  --panel: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif; background: var(--bg); color: var(--text); font-size: 14px; }
.hidden { display: none !important; }

/* 登录 */
.login-mask { position: fixed; inset: 0; background: linear-gradient(135deg, #1e3a8a, #2563eb 60%, #38bdf8); display: flex; align-items: center; justify-content: center; z-index: 100; }
.login-box { background: #fff; padding: 40px 44px; border-radius: 16px; width: 380px; text-align: center; box-shadow: 0 24px 60px rgba(0,0,0,.35); }
.login-logo { font-size: 52px; }
.login-box h1 { font-size: 22px; margin: 10px 0 4px; }
.login-box .sub { color: var(--muted); font-size: 12px; margin-bottom: 24px; }
.login-box input { width: 100%; padding: 11px 14px; margin-bottom: 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; }
.login-box input:focus { outline: 2px solid var(--primary); border-color: transparent; }
.err { color: var(--danger); font-size: 13px; min-height: 18px; margin-top: 6px; }

/* 布局 */
.topbar { background: #fff; height: 56px; display: flex; align-items: center; justify-content: space-between; padding: 0 24px; box-shadow: 0 1px 4px rgba(0,0,0,.06); position: sticky; top: 0; z-index: 10; }
.brand { font-size: 18px; font-weight: 700; }
.top-right { color: var(--muted); }
.top-right a { color: var(--danger); text-decoration: none; }
.dot { margin: 0 10px; }
.whoami { color: var(--primary); font-weight: 600; }
.nav { display: flex; gap: 4px; background: #fff; padding: 0 16px; border-bottom: 1px solid var(--border); position: sticky; top: 56px; z-index: 9; }
.nav-item { padding: 12px 18px; cursor: pointer; color: var(--muted); border-bottom: 3px solid transparent; font-weight: 500; user-select: none; }
.nav-item:hover { color: var(--primary); }
.nav-item.active { color: var(--primary); border-bottom-color: var(--primary); }
main { max-width: 1180px; margin: 20px auto; padding: 0 16px; }
.footer { text-align: center; color: var(--muted); font-size: 12px; padding: 24px 0 32px; }

/* 卡片 */
.cards { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; margin-bottom: 18px; }
.card { background: var(--panel); border-radius: 12px; padding: 18px 16px; box-shadow: 0 1px 3px rgba(0,0,0,.05); }
.card-label { color: var(--muted); font-size: 12px; margin-bottom: 8px; }
.card-num { font-size: 20px; font-weight: 700; }
.card-num.green { color: var(--success); }

/* 面板 */
.panel { background: var(--panel); border-radius: 12px; padding: 20px 22px; margin-bottom: 18px; box-shadow: 0 1px 3px rgba(0,0,0,.05); }
.panel h2 { font-size: 16px; margin-bottom: 14px; border-left: 4px solid var(--primary); padding-left: 10px; }
.panel h3 { font-size: 14px; margin: 18px 0 10px; color: var(--muted); }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.two-col .panel { margin-bottom: 0; }

/* 表格 */
.tbl { width: 100%; border-collapse: collapse; }
.tbl th, .tbl td { padding: 9px 10px; border-bottom: 1px solid var(--border); text-align: left; }
.tbl th { background: #f8fafc; color: var(--muted); font-weight: 600; font-size: 12px; }
.tbl tr:hover td { background: #f8fafc; }
.tag { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 12px; }
.tag.ok { background: #dcfce7; color: var(--success); }
.tag.warn { background: #fef3c7; color: var(--warn); }

/* 表单 */
.form-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; }
.form-row label { color: var(--muted); }
.form-row select, .form-row input { padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; font-size: 13px; }
.form-row select:focus, .form-row input:focus { outline: 2px solid var(--primary); border-color: transparent; }
.mt { margin-top: 14px; }
.total { font-size: 15px; }
.btn { border: none; padding: 9px 18px; border-radius: 8px; cursor: pointer; font-size: 13px; font-weight: 600; }
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success { background: var(--success); color: #fff; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-block { width: 100%; }
.btn-danger { background: #fee2e2; color: var(--danger); }
.ok-msg { color: var(--success); font-weight: 600; }
.err-msg { color: var(--danger); font-weight: 600; }
canvas { max-width: 100%; }