:root {
  --primary: #4a90d9;
  --primary-dark: #2e75b6;
  --bg: #f5f7fa;
  --card: #ffffff;
  --text: #333;
  --muted: #888;
  --border: #e5e9f0;
  --success: #52c41a;
  --danger: #f5222d;
  --shadow: 0 2px 8px rgba(0,0,0,.08);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, "Microsoft YaHei", "PingFang SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 14px;
}
/* 顶部导航 */
.navbar {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  padding: 0 16px;
  display: flex;
  align-items: center;
  height: 54px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 6px rgba(0,0,0,.15);
}
.navbar .brand { font-size: 17px; font-weight: 600; margin-right: auto; }
.navbar a { color: #fff; text-decoration: none; padding: 6px 12px; border-radius: 4px; font-size: 14px; }
.navbar a:hover { background: rgba(255,255,255,.18); }
.navbar .nav-user { font-size: 13px; opacity: .95; padding: 6px 8px; }
.navbar .nav-links { display: flex; align-items: center; gap: 2px; flex-wrap: wrap; }
/* 容器 */
.container { max-width: 900px; margin: 0 auto; padding: 16px; }
/* 卡片 */
.card {
  background: var(--card);
  border-radius: 10px;
  padding: 18px 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}
.card h2 { font-size: 17px; margin-bottom: 14px; color: var(--primary-dark); border-bottom: 2px solid var(--border); padding-bottom: 8px; }
.section-title { font-size: 15px; font-weight: 600; color: var(--primary-dark); margin: 18px 0 10px; display: flex; align-items: center; gap: 6px; }
/* 表单 */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 16px; }
.form-row { display: flex; flex-direction: column; gap: 4px; }
.form-row.full { grid-column: 1 / -1; }
label { font-size: 13px; color: #555; font-weight: 500; }
input[type="text"], input[type="number"], input[type="password"], textarea, select {
  padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px;
  font-size: 14px; background: #fff; transition: border .2s;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 2px rgba(74,144,217,.15); }
textarea { resize: vertical; min-height: 60px; font-family: inherit; }
/* 六件事 */
.thing-card { background: #f9fbfd; border: 1px solid var(--border); border-radius: 8px; padding: 12px 14px; margin-bottom: 12px; }
.thing-card .thing-header { font-weight: 600; margin-bottom: 8px; font-size: 15px; }
.thing-sub { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 12px; }
.thing-line { display: grid; grid-template-columns: 70px 100px 1fr; gap: 8px; align-items: center; }
/* 按钮 */
.btn {
  display: inline-block; padding: 9px 18px; border: none; border-radius: 6px;
  font-size: 14px; cursor: pointer; text-decoration: none; text-align: center;
  background: var(--primary); color: #fff; transition: all .2s; font-weight: 500;
}
.btn:hover { background: var(--primary-dark); color: #fff; }
.btn-block { width: 100%; }
.btn-success { background: var(--success); }
.btn-danger { background: var(--danger); }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-outline { background: #fff; color: var(--primary); border: 1px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
/* 表格 */
.table { width: 100%; border-collapse: collapse; font-size: 13px; background: #fff; }
.table th, .table td { padding: 9px 10px; border-bottom: 1px solid var(--border); text-align: left; }
.table th { background: #f0f4f9; color: var(--primary-dark); font-weight: 600; }
.table tr:hover { background: #fafcff; }
/* 提示 */
.alert { padding: 10px 14px; border-radius: 6px; margin-bottom: 12px; font-size: 13px; }
.alert-info { background: #e8f4ff; color: var(--primary-dark); }
.alert-success { background: #f0fae8; color: var(--success); }
.alert-danger { background: #fff0f0; color: var(--danger); }
/* 登录页 */
.auth-wrap { max-width: 360px; margin: 60px auto; }
.auth-wrap .logo { text-align: center; font-size: 24px; font-weight: 700; color: var(--primary); margin-bottom: 6px; }
.auth-wrap .sub { text-align: center; color: var(--muted); margin-bottom: 24px; font-size: 13px; }
/* 标签徽章 */
.badge { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 11px; background: #eef; color: var(--primary-dark); }
.badge-admin { background: #fff0e6; color: #d4751a; }
/* 统计数字 */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat-box { background: #fff; border: 1px solid var(--border); border-radius: 8px; padding: 14px; text-align: center; }
.stat-box .num { font-size: 26px; font-weight: 700; color: var(--primary); }
.stat-box .lbl { font-size: 12px; color: var(--muted); margin-top: 4px; }
.empty { text-align: center; color: var(--muted); padding: 30px; }
.muted { color: var(--muted); font-size: 12px; }
a { color: var(--primary); }
/* 手机适配 */
@media (max-width: 600px) {
  .container { padding: 10px; }
  .form-grid { grid-template-columns: 1fr; }
  .thing-sub { grid-template-columns: 1fr; }
  .thing-line { grid-template-columns: 60px 1fr; }
  .navbar { flex-wrap: wrap; height: auto; padding: 8px 12px; gap: 6px; }
  .navbar .brand { width: 100%; font-size: 15px; }
  .navbar .nav-links { width: 100%; overflow-x: auto; }
  .navbar a { padding: 6px 8px; font-size: 13px; white-space: nowrap; }
  .table { font-size: 12px; }
  .table th, .table td { padding: 6px 5px; }
}