/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .sidebar { width: 60px; }
  .sidebar-header h2, .sidebar-header p, .menu-item span { display: none; }
  .sidebar-header { justify-content: center; }
  .sidebar-toggle { margin: 0 auto; }
  .main-content { margin-left: 60px; }
  .page { padding: 16px; }
  .filter-bar { padding: 16px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}

/* ===== 滚动条美化 ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #d0d0d0; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #b0b0b0; }

/* ===== 选中文字颜色 ===== */
::selection { background: rgba(24,144,255,0.15); color: var(--primary-dark); }