/* ============================================
   响应式样式
   ============================================ */

/* 1200px以下 */
@media (max-width: 1200px) {
  .sidebar-right {
    width: 260px;
  }
  .editor-content {
    padding: 24px 30px;
  }
}

/* 992px以下 */
@media (max-width: 992px) {
  .sidebar-left {
    position: fixed;
    left: 0;
    top: var(--header-height);
    bottom: 0;
    z-index: var(--z-sidebar);
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
    box-shadow: var(--shadow-xl);
  }
  .sidebar-left.open {
    transform: translateX(0);
  }

  .sidebar-right {
    position: fixed;
    right: 0;
    top: var(--header-height);
    bottom: 0;
    z-index: var(--z-sidebar);
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    box-shadow: var(--shadow-xl);
  }
  .sidebar-right.open {
    transform: translateX(0);
  }

  .logo-text {
    display: none;
  }

  .export-options {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .review-compare {
    grid-template-columns: 1fr;
  }
}

/* 768px以下 */
@media (max-width: 768px) {
  .header-center {
    display: none;
  }

  .editor-content {
    padding: 16px 20px;
  }

  .ai-output-area {
    margin: 12px 20px;
  }

  .progress-steps {
    flex-wrap: wrap;
  }
  .step-label {
    display: none;
  }

  .modal {
    margin: 10px;
    max-height: 95vh;
  }
  .modal-small, .modal-medium, .modal-large, .modal-xlarge {
    width: 100%;
    max-width: 100%;
  }

  .admin-tabs {
    padding: 0 10px;
  }
  .admin-tab {
    padding: 10px 12px;
    font-size: 12px;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }

  .billing-details {
    grid-template-columns: 1fr;
  }

  .chapter-checkboxes {
    grid-template-columns: 1fr;
  }

  .system-info-grid {
    grid-template-columns: 1fr;
  }
}

/* 480px以下 */
@media (max-width: 480px) {
  .app-header {
    padding: 0 8px;
  }

  .header-actions {
    gap: 2px;
  }

  .header-btn {
    width: 32px;
    height: 32px;
  }

  .token-display {
    padding: 2px 8px;
    font-size: 11px;
  }

  .editor-content {
    padding: 12px 14px;
    font-size: 14px;
  }

  .chat-input {
    font-size: 13px;
  }

  .send-btn {
    width: 36px;
    height: 36px;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .export-options {
    grid-template-columns: 1fr;
  }

  .admin-content {
    padding: 16px;
  }

  .recharge-amount-presets {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 暗背景下的侧边栏遮罩 */
.sidebar-overlay {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.4);
  z-index: calc(var(--z-sidebar) - 1);
}
.sidebar-overlay.visible {
  display: block;
}

/* 移动端底部导航优化 */
@media (max-width: 768px) {
  .chat-input-area {
    padding: 0 4px 4px 4px;
  }
  .chat-options {
    flex-wrap: wrap !important;
    gap: 6px !important;
  }
  .chat-mode-select, .model-select {
    font-size: 11px !important;
    padding: 3px 6px !important;
  }
  .word-count-control {
    order: 3;
  }
  .editor-content {
    padding: 12px 14px !important;
    font-size: 15px !important;
  }
  .sidebar-tabs {
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
  }
  .sidebar-tab {
    min-width: 42px !important;
    padding: 4px 6px !important;
  }
  .tab-text {
    display: none !important;
  }
  .panel-header h3 {
    font-size: 13px !important;
  }
}

/* 角色卡列表样式 */
.character-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}