/* 响应式设计 */
@media screen and (max-width: 768px) {
  .container {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    min-height: auto;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    background: linear-gradient(180deg, #1e1e2e 0%, #2d2d44 100%);
  }

  header {
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
    background: linear-gradient(90deg, #4361ee 0%, #3a0ca3 100%);
  }

  .header-right {
    align-self: flex-end;
  }

  .login-container {
    padding: 30px 20px;
    max-width: 100%;
    background: linear-gradient(135deg, rgba(30, 30, 46, 0.95) 0%, rgba(45, 45, 68, 0.95) 100%);
  }

  .toolbar {
    flex-direction: column;
    background: rgba(30, 30, 46, 0.8);
  }

  .data-table {
    font-size: 14px;
    background-color: rgba(30, 30, 46, 0.9);
  }

  .data-table th,
  .data-table td {
    padding: 8px 6px;
  }

  .data-table th {
    background: linear-gradient(135deg, rgba(67, 97, 238, 0.3) 0%, rgba(67, 97, 238, 0.1) 100%);
  }

  .captcha-container {
    flex-direction: row;
    align-items: center;
    gap: 8px;
  }

  .captcha-container input {
    flex: 1;
    min-width: 0;
  }

  #captcha-canvas {
    width: 80px;
    height: 35px;
    align-self: center;
  }

  .modal {
    width: 95%;
    margin: 20px;
    background: linear-gradient(135deg, #1e1e2e 0%, #2d2d44 100%);
  }

  .form-actions {
    flex-direction: column;
  }

  .btn-primary,
  .btn-secondary,
  .btn-danger,
  .btn-success,
  .btn-view,
  .btn-delete {
    width: 100%;
    margin-right: 0;
    margin-bottom: 8px;
  }

  .btn-view {
    margin-bottom: 8px;
  }

  .table-container {
    padding: 5px;
  }
}

@media screen and (max-width: 480px) {
  .data-table th,
  .data-table td {
    padding: 6px 4px;
    font-size: 12px;
  }

  .login-container {
    padding: 20px 15px;
  }

  .btn-login {
    padding: 12px;
  }

  .stock-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .stock-actions {
    align-self: flex-end;
    width: 100%;
    display: flex;
    justify-content: flex-end;
  }

  .header-left h1 {
    font-size: 18px;
  }

  .main-content {
    padding: 10px;
    margin: 5px;
  }

  .modal {
    width: 98%;
    margin: 10px;
  }

  .modal-header {
    padding: 15px;
  }

  .modal-body {
    padding: 15px;
  }

  /* 表格水平滚动以适应小屏幕 */
  .table-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch; /* 为iOS提供平滑滚动 */
  }
  
  .data-table {
    min-width: 600px; /* 确保表格在小屏幕上可滚动 */
  }
}

/* 针对平板设备的优化 */
@media screen and (min-width: 769px) and (max-width: 1024px) {
  .sidebar {
    width: 180px;
    background: linear-gradient(180deg, #1e1e2e 0%, #2d2d44 100%);
  }

  .data-table th,
  .data-table td {
    padding: 10px;
  }

  .header {
    background: linear-gradient(90deg, #4361ee 0%, #3a0ca3 100%);
  }
}

/* 针对超小屏幕的特殊优化 */
@media screen and (max-width: 360px) {
  .login-container {
    padding: 15px;
  }
  
  .data-table th,
  .data-table td {
    padding: 4px 2px;
    font-size: 11px;
  }
  
  .btn-primary,
  .btn-secondary,
  .btn-danger,
  .btn-success,
  .btn-view,
  .btn-delete {
    padding: 5px 10px;
    font-size: 11px;
  }
  
  .header-left h1 {
    font-size: 16px;
  }
  
  .toolbar {
    padding: 10px;
  }
  
  .captcha-container {
    flex-direction: row;
    align-items: center;
    gap: 5px;
  }
  
  .captcha-container input {
    flex: 1;
    min-width: 0;
    padding: 8px;
  }
  
  #captcha-canvas {
    width: 70px;
    height: 30px;
    align-self: center;
  }
}