* { box-sizing: border-box; }
body { font-family: "Microsoft YaHei", sans-serif; margin: 0; background: #f5f5f5; }
.admin-header { background: #2c3e50; color: #fff; padding: 12px 24px; display: flex; align-items: center; gap: 16px; }
.admin-header a { color: #ecf0f1; text-decoration: none; }
.admin-header a:hover { text-decoration: underline; }
.admin-main { max-width: 900px; margin: 24px auto; padding: 0 16px; background: #fff; padding: 24px; border-radius: 8px; box-shadow: 0 1px 3px rgba(0,0,0,0.1); }
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.login-box { background: #fff; padding: 32px; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.1); width: 320px; }
.login-box h1 { margin-top: 0; }
.login-box label { display: block; margin: 12px 0; }
.login-box input { width: 100%; padding: 8px; }
.login-box button { width: 100%; padding: 10px; margin-top: 8px; background: #3498db; color: #fff; border: none; border-radius: 4px; cursor: pointer; }
.login-box .error { color: #c0392b; }
.form-block label { display: inline-block; margin-right: 8px; }
.form-block input[type=number] { width: 80px; }
.data-table { width: 100%; border-collapse: collapse; margin-top: 16px; }
.data-table th, .data-table td { border: 1px solid #ddd; padding: 8px 12px; text-align: left; }
.data-table th { background: #ecf0f1; }
.cell-stem { max-width: 280px; }
.form-question label { display: block; margin-top: 8px; }
.form-question textarea { width: 100%; max-width: 500px; }
.form-question .btn-upload { margin-left: 8px; cursor: pointer; }
.form-question .answer-radios { display: inline-flex; gap: 16px; margin-left: 8px; }
.form-question .answer-radios label { cursor: pointer; font-weight: normal; }
.error { color: #c0392b; }

.search-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}
.search-bar .search-box input[type="text"] {
  padding: 4px 8px;
  border: 1px solid #ccc;
  border-radius: 4px;
}
.search-bar .search-box button {
  padding: 4px 10px;
  border: none;
  background: #3498db;
  color: #fff;
  border-radius: 4px;
  cursor: pointer;
}
.search-bar .search-box a {
  margin-left: 6px;
}

.filter-status { margin-left: 8px; }
.filter-status a { margin: 0 4px; padding: 2px 8px; border-radius: 4px; text-decoration: none; color: #3498db; }
.filter-status a:hover { background: #ecf0f1; }
.filter-status a.active { background: #3498db; color: #fff; }
.pagination-bar { margin-left: 16px; }
.pagination-bar a { margin: 0 4px; padding: 2px 8px; border-radius: 4px; text-decoration: none; color: #3498db; }
.pagination-bar a:hover { background: #ecf0f1; }
.pagination-bar a.active { background: #3498db; color: #fff; }
.data-table .col-check { width: 56px; }
.batch-actions .check-all-wrap { margin-right: 12px; cursor: pointer; font-weight: normal; user-select: none; }
.batch-actions .check-all-wrap input { margin-right: 4px; vertical-align: middle; }
.pagination { margin-top: 16px; }
.pagination a { margin-right: 8px; color: #3498db; text-decoration: none; }
.pagination a:hover { text-decoration: underline; }
.pagination span { margin-right: 12px; color: #666; }
.batch-actions { margin-top: 12px; display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.btn-batch-enable { padding: 6px 14px; background: #27ae60; color: #fff; border: none; border-radius: 4px; cursor: pointer; }
.btn-batch-enable:hover { background: #219a52; }
.btn-batch-disable { padding: 6px 14px; background: #7f8c8d; color: #fff; border: none; border-radius: 4px; cursor: pointer; }
.btn-batch-disable:hover { background: #95a5a6; }
.btn-batch-delete { padding: 6px 14px; background: #c0392b; color: #fff; border: none; border-radius: 4px; cursor: pointer; }
.btn-batch-delete:hover { background: #a93226; }
.admin-main .notice { background: #fff3cd; border: 1px solid #ffc107; padding: 10px 12px; border-radius: 4px; margin-bottom: 12px; }
.admin-main .notice code { background: #eee; padding: 2px 6px; border-radius: 3px; }
.data-table tr.row-disabled { background: #f9f9f9; color: #888; }
.data-table tr.row-disabled .cell-stem { color: #999; }